##################################################### ### main/01_exim-config_listmacrosdefs ##################################################### ###################################################################### # Runtime configuration file for Exim 4 (Debian Packaging) # ###################################################################### ###################################################################### # Datadisk SPECIFIC STUFF # # WARNING # # THERE ARE A FEW MORE datadisk SPECIFIC LINES # # TOWARDS THE END OF THIS FILE # ###################################################################### primary_hostname = gw1.datadisk.co.uk ###################################################################### # /etc/exim/exim.conf.template is only used with the non-split # configuration scheme. # /etc/exim/conf.d/main/01_exim-config_listmacrosdefs is only used # with the split configuration scheme. # If you find this comment anywhere else, somebody copied it there. # Documentation about the Debian exim configuration scheme can be # found in /usr/share/doc/exim-base/README.Debian.gz. # # Strings like DEBCONFsomethingDEBCONF are replaced by installation # dependent values by update-exim.conf, the script which builds the # actual configuration from the templates. ###################################################################### ###################################################################### # MAIN CONFIGURATION SETTINGS # ###################################################################### # # datadisk Specific settings # CHECK_RCPT_DOMAIN_DNSBLS = smtp.dnsbl.sorbs.net : \ spam.dnsbl.sorbs.net : \ sbl-xbl.spamhaus.org : \ zombie.dnsbl.sorbs.net : \ web.dnsbl.sorbs.net : \ rhsbl.sorbs.net # list.dsbl.org CHECK_RCPT_IP_DNSBLS = sbl-xbl.spamhaus.org : \ dnsbl.sorbs.net : \ cbl.abuseat.org # Just for reference and scripts. # On Debian systems, the main binary is installed as exim to avoid # conflicts with the exim 3 packages. exim_path = /usr/sbin/exim # Macro defining the main configuration directory. # We do not use absolute paths. .ifndef CONFDIR CONFDIR = /etc/exim .endif # This sets a macro DC_minimaldns if dc_minimaldns=true. If # dc_minimaldns=false, this expands to an empty line. .ifndef DC_minimaldns DEBCONFminimaldnsDEBCONF .endif # Create other macros from Debconf. Macros created here are used in # other places in exim config. .ifndef DC_visiblename DC_visiblename=DEBCONFvisiblenameDEBCONF .endif # Create domain and host lists for relay control # '@' refers to 'the name of the local host' .ifndef MAIN_LOCAL_DOMAINS MAIN_LOCAL_DOMAINS = DEBCONFlocal_domainsDEBCONF .endif domainlist local_domains = MAIN_LOCAL_DOMAINS .ifndef MAIN_RELAY_TO_DOMAINS MAIN_RELAY_TO_DOMAINS = DEBCONFrelay_domainsDEBCONF .endif domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS .ifndef MAIN_RELAY_NETS MAIN_RELAY_NETS = DEBCONFrelay_netsDEBCONF .endif hostlist relay_from_hosts = 127.0.0.1 : MAIN_RELAY_NETS # Specify the domain you want to be added to all unqualified addresses # here. Unqualified addresses are accepted only from local callers by # default. The recipient_unqualified_hosts option can be used to permit # unqualified addresses from remote sources. # If qualify_domain is not set, the primary_hostname value is used for # qualification. # The ifdef bracket makes sure that an empty debconf value is correctly # translated to "unset". .ifdef DC_visiblename qualify_domain = DC_visiblename .endif # only used for satellite-system .ifndef DCreadhost DCreadhost = DEBCONFreadhostDEBCONF .endif #for satellite and smarthost-systems .ifndef DCsmarthost DCsmarthost = DEBCONFsmarthostDEBCONF .endif # listen on all all interfaces? .ifdef MAIN_LOCAL_INTERFACES local_interfaces = MAIN_LOCAL_INTERFACES .else DEBCONFlistenonpublicDEBCONF .endif .ifndef LOCAL_DELIVERY # The default transport, set in /etc/exim/update-exim.conf.conf, # defaulting to mail_spool. See CONFDIR/conf.d/transport/ for possibilities LOCAL_DELIVERY=DEBCONFlocaldeliveryDEBCONF .endif # The gecos field in /etc/passwd holds not only the name. see passwd(5). gecos_pattern = ^([^,:]*) gecos_name = $1 # define a macro DCconfig_smarthost, DCconfig_satellite, etc. we need this # for .ifdef ... .endif .ifndef DCconfig_satellite .ifndef DCconfig_internet .ifndef DCconfig_local .ifndef DCconfig_smarthost DCconfig_DEBCONFconfigtypeDEBCONF = 1 .endif .endif .endif .endif # define macros to be used in acl/30_exim-config_check_rcpt to check # recipient local parts for strange characters # This macro is used to check local parts of recipients in local # domains. It blocks local parts that begin with a dot or contain a # quite broad range of non-alphanumeric characters. # # Original.... # CHECK_RCPT_LOCAL_LOCALPARTS = ^[.] : ^.*[@%!/|\'`#&?] # .ifndef CHECK_RCPT_LOCAL_LOCALPARTS CHECK_RCPT_LOCAL_LOCALPARTS = ^[.] : ^.*[@%!/|\#&?] .endif # This macro is used to check local parts of recipients in non-local # domains. It thus allows your own users to send outgoing messages to # sites that use slashes and vertical bars in their local parts. It blocks # local parts that begin with a dot, slash, or vertical bar, but allows # these characters within the local part. However, the sequence /../ is # barred. The use of some other non-alphanumeric characters is blocked. # The motivation here is to prevent your users (or your users' viruses) # from mounting certain kinds of attack on remote sites. # # Original.... # CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!\'`#&?] : ^.*/\\.\\./ # .ifndef CHECK_RCPT_REMOTE_LOCALPARTS CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!\#&?] : ^.*/\\.\\./ .endif ##################################################### ### end main/01_exim-config_listmacrosdefs ##################################################### ##################################################### ### main/02_exim-config_options ##################################################### ### main/02_exim-config_options ################################# # Defines the access control list that is run when an # SMTP RCPT command is received. # .ifndef MAIN_ACL_CHECK_RCPT MAIN_ACL_CHECK_RCPT = acl_check_rcpt .endif acl_smtp_rcpt = MAIN_ACL_CHECK_RCPT # Defines the access control list that is run when an # SMTP DATA command is received. # .ifndef MAIN_ACL_CHECK_DATA MAIN_ACL_CHECK_DATA = acl_check_data .endif acl_smtp_data = MAIN_ACL_CHECK_DATA # Message size limit. The default (used when MESSAGE_SIZE_LIMIT # is unset) is 50 MB .ifdef MESSAGE_SIZE_LIMIT message_size_limit = MESSAGE_SIZE_LIMIT .endif # Domain used to qualify unqualified recipient addresses # If this option is not set, the qualify_domain value is used. # qualify_recipient = # Allow Exim to recognize addresses of the form "user@[10.11.12.13]", # where the domain part is a "domain literal" (an IP address) instead # of a named domain. The RFCs require this facility, but it is disabled # in the default config since it is seldomly used and frequently abused. # Domain literal support also needs a special router, which is automatically # enabled if you use the enable macro MAIN_ALLOW_DOMAIN_LITERALS. .ifdef MAIN_ALLOW_DOMAIN_LITERALS allow_domain_literals .endif # Do a reverse DNS lookup on all incoming IP calls, in order to get the # true host name. If you feel this is too expensive, the networks for # which a lookup is done can be listed here. .ifndef DC_minimaldns .ifndef MAIN_HOST_LOOKUP MAIN_HOST_LOOKUP = * .endif host_lookup = MAIN_HOST_LOOKUP .endif # In a minimaldns setup, update-exim.conf guesses the hostname and # dumps it here to avoid DNS lookups being done at Exim run time. DEBCONF_hardcode_primary_hostname_DEBCONF # Do RFC 1413 (ident) callbacks for incoming SMTP calls. The default # is to do lookups for all hosts with a timeout of 30 seconds. # The options can be used to limit the hosts to which these calls are # made, and/or change the timeout that is used. If the timeout is zero, # no RFC 1413 calls are made. RFC 1413 calls are cheap and can provide # useful information for tracing problem messages, but some hosts and # firewalls are misconfigured to drop the requests instead of either # answering or rejecting them. This can result in timeouts, leading to # delays on starting up an SMTP session and to strange behavior in # settings where SMTP callouts are used. rfc1413_hosts = * rfc1413_query_timeout = 0s # By default, exim forces a Sender: header containing the local # account name at the local host name in all locally submitted messages # that don't have the local account name at the local host name in the # From: header, deletes any Sender: header present in the submitted # message and forces the envelope sender of all locally submitted # messages to the local account name at the local host name. # The following settings allow local users to specify their own envelope sender # in a locally submitted message. Sender: headers existing in a locally # submitted message are not removed, and no automatic Sender: headers # are added. These settings are fine for most hosts. # If you run exim on a classical multi-user systems where all users # have local mailboxes that can be reached via SMTP from the Internet # with the local FQDN as the domain part of the address, you might want # to disable the following three lines for traceability reasons. .ifndef MAIN_FORCE_SENDER local_from_check = false local_sender_retain = true untrusted_set_sender = * .endif # By default, Exim expects all envelope addresses to be fully qualified, that # is, they must contain both a local part and a domain. Configure exim # to accept unqualified addresses from certain hosts. When this is done, # unqualified addresses are qualified using the settings of qualify_domain # and/or qualify_recipient (see above). # sender_unqualified_hosts = # recipient_unqualified_hosts = # Configure Exim to support the "percent hack" for certain domains. # The "percent hack" is the feature by which mail addressed to x%y@z # (where z is one of the domains listed) is locally rerouted to x@y # and sent on. If z is not one of the "percent hack" domains, x%y is # treated as an ordinary local part. The percent hack is rarely needed # nowadays but frequently abused. You should not enable it unless you # are sure that you really need it. # percent_hack_domains = # Bounce handling .ifndef MAIN_IGNORE_BOUNCE_ERRORS_AFTER MAIN_IGNORE_BOUNCE_ERRORS_AFTER = 2d .endif ignore_bounce_errors_after = MAIN_IGNORE_BOUNCE_ERRORS_AFTER .ifndef MAIN_TIMEOUT_FROZEN_AFTER MAIN_TIMEOUT_FROZEN_AFTER = 7d .endif timeout_frozen_after = MAIN_TIMEOUT_FROZEN_AFTER .ifndef MAIN_FREEZE_TELL MAIN_FREEZE_TELL = postmaster .endif freeze_tell = MAIN_FREEZE_TELL # Define spool directory .ifndef SPOOLDIR SPOOLDIR = /var/spool/exim .endif spool_directory = SPOOLDIR # trusted users can set envelope-from to arbitrary values .ifndef MAIN_TRUSTED_USERS MAIN_TRUSTED_USERS = uucp .endif trusted_users = MAIN_TRUSTED_USERS .ifdef MAIN_TRUSTED_GROUPS trusted_groups = MAIN_TRUSTED_GROUPS .endif # users in admin group can do many other things # admin_groups = # customize logging. See spec.txt 48.15. # If you want to debug, it is probably a good idea to set this to # "+all -subject -arguments". # If you use TLS, it might be a good idea to set "+tls_cipher # +tls_peerdn". # log_selector = # SMTP Banner. The example includes the Debian version in the SMTP dialog # MAIN_SMTP_BANNER = "${primary_hostname} ESMTP Exim ${version_number} (Debian package DEBCONFpackageversionDEBCONF) ${tod_full}" # smtp_banner = $smtp_active_hostname ESMTP Exim $version_number $tod_full MAIN_SMTP_BANNER = "datadisk SMTP Daemon" smtp_banner = "datadisk SMTP Daemon" ##################################################### ### end main/02_exim-config_options ##################################################### ##################################################### ### main/03_exim-config_tlsoptions ##################################################### ### main/03_exim-config_tlsoptions ################################# # TLS/SSL configuration. # See /usr/share/doc/exim-base/README.Debian.gz for explanations. .ifdef MAIN_TLS_ENABLE # Defines what hosts to 'advertise' STARTTLS functionality to. The # default, *, will advertise to all hosts that connect with EHLO. .ifndef MAIN_TLS_ADVERTISE_HOSTS MAIN_TLS_ADVERTISE_HOSTS = * .endif tls_advertise_hosts = MAIN_TLS_ADVERTISE_HOSTS # Full paths to Certificate and Private Key. The Private Key file # must be kept 'secret' and should be owned by root.Debian-exim mode # 640 (-rw-r-----). exim-gencert takes care of these prerequisites. .ifndef MAIN_TLS_CERTIFICATE MAIN_TLS_CERTIFICATE = CONFDIR/exim.crt .endif tls_certificate = MAIN_TLS_CERTIFICATE .ifndef MAIN_TLS_PRIVATEKEY MAIN_TLS_PRIVATEKEY = CONFDIR/exim.key .endif tls_privatekey = MAIN_TLS_PRIVATEKEY # Pointer to the CA Certificates against which client certificates are # checked. This is controlled by the `tls_verify_hosts' and # `tls_try_verify_hosts' lists below. # If you want to check server certificates, you need to add an # tls_verify_certificates statement to the smtp transport. # /etc/ssl/certs/ca-certificates.crt is generated by # the "ca-certificates" package's update-ca-certificates(8) command. .ifndef MAIN_TLS_VERIFY_CERTIFICATES MAIN_TLS_VERIFY_CERTIFICATES = ${if exists{/etc/ssl/certs/ca-certificates.crt}\ {/etc/ssl/certs/ca-certificates.crt}\ {/dev/null}} .endif tls_verify_certificates = MAIN_TLS_VERIFY_CERTIFICATES # A list of hosts which are constrained by `tls_verify_certificates'. A host # that matches `tls_verify_host' must present a certificate that is # verifyable through `tls_verify_certificates' in order to be accepted as an # SMTP client. If it does not, the connection is aborted. .ifdef MAIN_TLS_VERIFY_HOSTS tls_verify_hosts = MAIN_TLS_VERIFY_HOSTS .endif # A weaker form of checking: if a client matches `tls_try_verify_hosts' (but # not `tls_verify_hosts'), request a certificate and check it against # `tls_verify_certificates' but do not abort the connection if there is no # certificate or if the certificate presented does not match. (This # condition can be tested for in ACLs through `verify = certificate') .ifndef MAIN_TLS_TRY_VERIFY_HOSTS MAIN_TLS_TRY_VERIFY_HOSTS = * .endif tls_try_verify_hosts = MAIN_TLS_TRY_VERIFY_HOSTS .endif ##################################################### ### end main/03_exim-config_tlsoptions ##################################################### ##################################################### ### acl/00_exim-config_header ##################################################### ###################################################################### # ACL CONFIGURATION # # Specifies access control lists for incoming SMTP mail # ###################################################################### begin acl ##################################################### ### end acl/00_exim-config_header ##################################################### ##################################################### ### acl/20_exim-config_whitelist_local_deny ##################################################### ### acl/20_exim-config_whitelist_local_deny ################################# # This is used to determine whitelisted senders and hosts. # It checks for CONFDIR/local_host_whitelist and # CONFDIR/local_sender_whitelist. # # It is meant to be used from some other acl entry. # # For example, # deny # message = local blacklist example # !acl = acl_whitelist # dnslist = some.dns.list.example # will allow messages with envelope sender listed in local_sender_whitelist # or messages coming in from hosts listed in local_host_whitelist to be # accepted even if the delivering host is listed in the dns list. # # Whitelisting can also be configured by including negative items in the # black list. See /usr/share/doc/exim-config/default_acl for details. # # If the files do not exist, the white list never matches, which is # the desired behaviour. acl_whitelist_local_deny: accept hosts = ${if exists{CONFDIR/local_host_whitelist}\ {CONFDIR/local_host_whitelist}\ {}} accept senders = ${if exists{CONFDIR/local_sender_whitelist}\ {CONFDIR/local_sender_whitelist}\ {}} # This hook allows you to hook in your own ACLs without having to # modify this file. If you do it like we suggest, you'll end up with # a small performance penalty since there is an additional file being # accessed. This doesn't happen if you leave the macro unset. .ifdef WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE .include WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE .endif ##################################################### ### end acl/20_exim-config_whitelist_local_deny ##################################################### ##################################################### ### acl/30_exim-config_check_rcpt ##################################################### ### acl/30_exim-config_check_rcpt ################################# # This access control list is used for every RCPT command in an incoming # SMTP message. The tests are run in order until the address is either # accepted or denied. # acl_check_rcpt: # Accept if the source is local SMTP (i.e. not over TCP/IP). We do this by # testing for an empty sending host field. accept hosts = : # Add missing Date and Message-ID header for relayed messages warn hosts = +relay_from_hosts control = submission/sender_retain # The following section of the ACL is concerned with local parts that contain # certain non-alphanumeric characters. Dots in unusual places are # handled by this ACL as well. # # Non-alphanumeric characters other than dots are rarely found in genuine # local parts, but are often tried by people looking to circumvent # relaying restrictions. Therefore, although they are valid in local # parts, these rules disallow certain non-alphanumeric characters, as # a precaution. # # Empty components (two dots in a row) are not valid in RFC 2822, but Exim # allows them because they have been encountered. (Consider local parts # constructed as "firstinitial.secondinitial.familyname" when applied to # a name without a second initial.) However, a local part starting # with a dot or containing /../ can cause trouble if it is used as part of a # file name (e.g. for a mailing list). This is also true for local parts that # contain slashes. A pipe symbol can also be troublesome if the local part is # incorporated unthinkingly into a shell command line. # # Two different rules are used. The first one has a quite strict # default, and is applied to messages that are addressed to one of the # local domains handled by this host. # If you have local accounts that include strange characters, you can # use the macro provided to change the ACL range or to disable the # check completely. .ifdef CHECK_RCPT_LOCAL_LOCALPARTS deny domains = +local_domains local_parts = CHECK_RCPT_LOCAL_LOCALPARTS message = restricted characters in address .endif # The second rule applies to all other domains, and its default is # considerably less strict. .ifdef CHECK_RCPT_REMOTE_LOCALPARTS deny domains = !+local_domains local_parts = CHECK_RCPT_REMOTE_LOCALPARTS message = restricted characters in address .endif # Accept mail to postmaster in any local domain, regardless of the source, # and without verifying the sender. # accept .ifndef CHECK_RCPT_POSTMASTER local_parts = postmaster .else local_parts = CHECK_RCPT_POSTMASTER .endif domains = +local_domains : +relay_to_domains # deny bad senders (envelope sender) # CONFDIR/local_sender_blacklist holds a list of envelope senders that # should have their access denied to the local host. Incoming messages # with one of these senders are rejected at RCPT time. # # The explicit white lists are honored as well as negative items in # the black list. See /usr/share/doc/exim-config/default_acl for details. deny message = sender envelope address $sender_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster !acl = acl_whitelist_local_deny senders = ${if exists{CONFDIR/local_sender_blacklist}\ {CONFDIR/local_sender_blacklist}\ {}} accept recipients = ${if exists{CONFDIR/local_rcpt_whitelist}\ {CONFDIR/local_rcpt_whitelist}\ {}} # deny bad sites (IP address) # CONFDIR/local_host_blacklist holds a list of host names, IP addresses # and networks (CIDR notation) that should have their access denied to # The local host. Messages coming in from a listed host will have all # RCPT statements rejected. # # The explicit white lists are honored as well as negative items in # the black list. See /usr/share/doc/exim-config/default_acl for details. deny message = sender IP address $sender_host_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster !acl = acl_whitelist_local_deny hosts = ${if exists{CONFDIR/local_host_blacklist}\ {CONFDIR/local_host_blacklist}\ {}} # Deny unless the sender address can be verified. # # This is disabled by default so that DNSless systems don't break. If # your system can do DNS lookups without delay or cost, you might want # to enable this feature. .ifdef CHECK_RCPT_VERIFY_SENDER deny message = Sender verification failed !acl = acl_whitelist_local_deny !verify = sender .endif # For some sender domains, we do callout to verify if a sender # exists. deny !acl = acl_whitelist_local_deny senders = ${if exists{CONFDIR/local_sender_callout}\ {CONFDIR/local_sender_callout}\ {}} !verify = sender/callout # For some recipient domains, we do callout to verify if a recipient # exists. This is especially handy for customers that receive a lot of # spam to non-existent addresses. deny !acl = acl_whitelist_local_deny recipients = ${if exists{CONFDIR/local_rcpt_callout}\ {CONFDIR/local_rcpt_callout}\ {}} !verify = recipient/callout # Warn if the sender host does not have valid reverse DNS. # # If your system can do DNS lookups without delay or cost, you might want # to enable this. # If sender_host_address is defined, it's a remote call. If # sender_host_name is not defined, then reverse lookup failed. Use # this instead of !verify = reverse_host_lookup to catch deferrals # as well as outright failures. .ifdef CHECK_RCPT_REVERSE_DNS warn message = X-Host-Lookup-Failed: Reverse DNS lookup failed for $sender_host_address (${if eq{$host_lookup_failed}{1}{failed}{deferred}}) condition = ${if and{{def:sender_host_address}{!def:sender_host_name}}\ {yes}{no}} .endif # Check against classic DNS "black" lists (DNSBLs) which list # sender IP addresses .ifdef CHECK_RCPT_IP_DNSBLS deny message = X-Warning: IP $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text) log_message = IP $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text) !senders = ${if exists{CONFDIR/local_domain_dnsbl_whitelist}\ {CONFDIR/local_domain_dnsbl_whitelist}\ {}} dnslists = CHECK_RCPT_IP_DNSBLS delay = 4m .endif # Check against DNSBLs which list sender domains, with an option to locally # whitelist certain domains that might be blacklisted. If you want one # blacklist per domain, you need to replicate the stanza for each DNSBL. .ifdef CHECK_RCPT_DOMAIN_DNSBLS deny message = X-Warning: Domain $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text) log_message = Domain $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text) !senders = ${if exists{CONFDIR/local_domain_dnsbl_whitelist}\ {CONFDIR/local_domain_dnsbl_whitelist}\ {}} dnslists = CHECK_RCPT_DOMAIN_DNSBLS/$sender_address_domain delay = 4m .endif # This hook allows you to hook in your own ACLs without having to # modify this file. If you do it like we suggest, you'll end up with # a small performance penalty since there is an additional file being # accessed. This doesn't happen if you leave the macro unset. .ifdef CHECK_RCPT_LOCAL_ACL_FILE .include CHECK_RCPT_LOCAL_ACL_FILE .endif # Accept if the address is in a local domain, but only if the recipient can # be verified. Otherwise deny. The "endpass" line is the border between # passing on to the next ACL statement (if tests above it fail) or denying # access (if tests below it fail). # accept domains = +local_domains endpass message = unknown user verify = recipient # Accept if the address is in a domain for which we are relaying, but again, # only if the recipient can be verified. # # If you want to use the more conservative "unknown user" error # message in case of a non-existing local part, you might want to # set CHECK_RCPT_GIVE_UNKNOWN_USER. However, this might reveal # local information, which is the cause for it not being enabled by # default. accept domains = +relay_to_domains endpass .ifdef CHECK_RCPT_GIVE_UNKNOWN_USER message = ${if eq{$acl_verify_message}{Unrouteable address}{unknown user}{$acl_verify_message}} .else message = unrouteable address .endif verify = recipient ############ # If control reaches this point, the domain is neither in +local_domains # nor in +relay_to_domains. ############ # Accept if the message comes from one of the hosts for which we are an # outgoing relay. Recipient verification is omitted here, because in many # cases the clients are dumb MUAs that don't cope well with SMTP error # responses. If you are actually relaying out from MTAs, you should probably # add recipient verification here. # accept hosts = +relay_from_hosts # Accept if the message arrived over an authenticated connection, from # any host. Again, these messages are usually from MUAs, so recipient # verification is omitted. # accept authenticated = * # Reaching the end of the ACL causes a "deny", but we might as well give # an explicit message. # deny message = relay not permitted ##################################################### ### end acl/30_exim-config_check_rcpt ##################################################### ##################################################### ### acl/40_exim-config_check_data ##################################################### ### acl/40_exim-config_check_data ################################# acl_check_data: # Deny unless the address list headers are syntactically correct. # # If you enable this, you might reject legitimate mail. .ifdef CHECK_DATA_VERIFY_HEADER_SYNTAX deny message = Message headers fail syntax check !acl = acl_whitelist_local_deny !verify = header_syntax .endif # require that there is a verifiable sender address in at least # one of the "Sender:", "Reply-To:", or "From:" header lines. .ifdef CHECK_DATA_VERIFY_HEADER_SENDER deny message = No verifiable sender address in message headers !acl = acl_whitelist_local_deny !verify = header_sender .endif # This hook allows you to hook in your own ACLs without having to # modify this file. If you do it like we suggest, you'll end up with # a small performance penalty since there is an additional file being # accessed. This doesn't happen if you leave the macro unset. .ifdef CHECK_DATA_LOCAL_ACL_FILE .include CHECK_DATA_LOCAL_ACL_FILE .endif # accept otherwise accept ##################################################### ### end acl/40_exim-config_check_data ##################################################### ##################################################### ### router/00_exim-config_header ##################################################### ###################################################################### # ROUTERS CONFIGURATION # # Specifies how addresses are handled # ###################################################################### # THE ORDER IN WHICH THE ROUTERS ARE DEFINED IS IMPORTANT! # # An address is passed to each router in turn until it is accepted. # ###################################################################### begin routers ##################################################### ### end router/00_exim-config_header ##################################################### ##################################################### ### router/100_exim-config_domain_literal ##################################################### ### router/100_exim-config_domain_literal ################################# # This router handles e-mail addresses in "domain literal" form like # . The RFCs require this facility, but it is disabled # in the default config since it is seldomly used and frequently abused. # Domain literal support also needs to be enabled in the main config, # which is automatically done if you use the enable macro # MAIN_ALLOW_DOMAIN_LITERALS. .ifdef MAIN_ALLOW_DOMAIN_LITERALS domain_literal: debug_print = "R: domain_literal for $local_part@$domain" driver = ipliteral domains = ! +local_domains transport = remote_smtp headers_remove = received .endif ##################################################### ### end router/100_exim-config_domain_literal ##################################################### ##################################################### ### router/150_exim-config_hubbed_hosts ##################################################### # router/150_exim-config_hubbed_hosts ################################# # route specific domains manually. # # The most common application of this router is to handle relaying to nonlocal # domains that the local host is primary MX for. That means that local # information needs to be present for a domain to be handled correctly. # # That information is put into the optional file /etc/exim/hubbed_hosts # which contains key-value pairs of domain pattern and route data. # # foo.example: internal.mail.example.com # bar.example: 192.168.183.3 # # will cause mail for foo.example to be sent to the host # internal.mail.example (IP address derived from A record only), and # mail to bar.example to be sent to 192.168.183.3. # # If the file /etc/exim/hubbed_hosts does not exist, this router is a # no-op. hubbed_hosts: debug_print = "R: hubbed_hosts for $domain" driver = manualroute domains = "${if exists{CONFDIR/hubbed_hosts}\ {partial-lsearch;CONFDIR/hubbed_hosts}\ fail}" same_domain_copy_routing = yes route_data = ${lookup{$domain}partial-lsearch{CONFDIR/hubbed_hosts}} transport = remote_smtp ##################################################### ### end router/150_exim-config_hubbed_hosts ##################################################### ##################################################### ### router/200_exim-config_primary ##################################################### ### router/200_exim-config_primary ################################# # This file holds the primary router, responsible for nonlocal mails .ifdef DCconfig_internet # configtype=internet # # deliver mail to the recipient if recipient domain is a domain we # relay for. We do not ignore any target hosts here since delivering to # a site local or even a link local address might be wanted here, and if # such an address has found its way into the MX record of such a domain, # the local admin is probably in a place where that broken MX record # could be fixed. dnslookup_relay_to_domains: debug_print = "R: dnslookup_relay_to_domains for $local_part@$domain" driver = dnslookup domains = ! +local_domains : +relay_to_domains transport = remote_smtp same_domain_copy_routing = yes no_more # deliver mail directly to the recipient. This router is only reached # for domains that we do not relay for. Since we most probably can't # have broken MX records pointing to site local or link local IP # addresses fixed, we ignore target hosts pointing to these addresses. dnslookup: debug_print = "R: dnslookup for $local_part@$domain" driver = dnslookup domains = ! +local_domains transport = remote_smtp headers_remove = received same_domain_copy_routing = yes # ignore private rfc1918 and APIPA addresses ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8 : 192.168.0.0/16 :\ 172.16.0.0/12 : 10.0.0.0/8 : 169.254.0.0/16 no_more .endif .ifdef DCconfig_local # configtype=local # # Stand-alone system, so generate an error for mail to a non-local domain nonlocal: debug_print = "R: nonlocal for $local_part@$domain" driver = redirect domains = ! +local_domains allow_fail data = :fail: Mailing to remote domains not supported no_more .endif .ifdef DCconfig_smarthost DCconfig_satellite # configtype=smarthost or configtype=satellite # # Send all non-local mail to a single other machine (smarthost). # # This means _ALL_ non-local mail goes to the smarthost. This will most # probably not do what you want for domains that are listed in # relay_domains. The most typical use for relay_domains is to control # relaying for incoming e-mail on secondary MX hosts. In that case, # it doesn't make sense to send the mail to the smarthost since the # smarthost will probably send the message right back here, causing a # loop. # # If you want to use a smarthost while being secondary MX for some # domains, you'll need to copy the dnslookup_relay_to_domains router # here so that mail to relay_domains is handled separately. smarthost: debug_print = "R: smarthost for $local_part@$domain" driver = manualroute domains = ! +local_domains transport = remote_smtp_smarthost route_list = * DCsmarthost byname host_find_failed = defer same_domain_copy_routing = yes no_more .endif # The "no_more" above means that all later routers are for # domains in the local_domains list, i.e. just like Exim 3 directors. ##################################################### ### end router/200_exim-config_primary ##################################################### ##################################################### ### router/300_exim-config_real_local ##################################################### ### router/400_exim-config_real_local ################################# # This router allows reaching a local user while avoiding local # processing. This can be used to inform a user of a broken .forward # file, for example. The userforward router does this. real_local: debug_print = "R: real_local for $local_part@$domain" driver = accept domains = +local_domains local_part_prefix = real- check_local_user transport = LOCAL_DELIVERY ##################################################### ### end router/300_exim-config_real_local ##################################################### ##################################################### ### router/400_exim-config_system_aliases ##################################################### ### router/400_exim-config_system_aliases ################################# # This router handles aliasing using a traditional /etc/aliases file. # ##### NB You must ensure that /etc/aliases exists. It used to be the case ##### NB that every Unix had that file, because it was the Sendmail default. ##### NB These days, there are systems that don't have it. Your aliases ##### NB file should at least contain an alias for "postmaster". # # This router handles the local part in a case-insensitive way which # satisfies the RFCs requirement that postmaster be reachable regardless # of case. If you decide to handle /etc/aliases in a caseful way, you # need to make arrangements for a caseless postmaster. # # Piping to programs in /etc/aliases is disabled per default. # If that is a problem for you, see # /usr/share/doc/exim-config/README.system_aliases # for explanation and some workarounds. # # Note that the transports listed below are the same as are used for # .forward files; you might want to set up different ones for pipe and # file deliveries from aliases. system_aliases: debug_print = "R: system_aliases for $local_part@$domain" driver = redirect domains = +local_domains allow_fail allow_defer data = ${lookup{$local_part}lsearch{/etc/aliases}} .ifdef SYSTEM_ALIASES_USER user = SYSTEM_ALIASES_USER .endif .ifdef SYSTEM_ALIASES_GROUP group = SYSTEM_ALIASES_GROUP .endif .ifdef SYSTEM_ALIASES_FILE_TRANSPORT file_transport = SYSTEM_ALIASES_FILE_TRANSPORT .endif .ifdef SYSTEM_ALIASES_PIPE_TRANSPORT pipe_transport = SYSTEM_ALIASES_PIPE_TRANSPORT .endif .ifdef SYSTEM_ALIASES_DIRECTORY_TRANSPORT directory_transport = SYSTEM_ALIASES_DIRECTORY_TRANSPORT .endif ##################################################### ### end router/400_exim-config_system_aliases ##################################################### ##################################################### ### router/500_exim-config_hubuser ##################################################### ### router/500_exim-config_hubuser ################################# .ifdef DCconfig_satellite # This router is only used for configtype=satellite. # It takes care to route all mail targetted to # to the host where we read our mail # hub_user: debug_print = "R: hub_user for $local_part@$domain" driver = redirect domains = +local_domains data = ${local_part}@DCreadhost check_local_user # Grab the redirected mail and deliver it. # This is a duplicate of the smarthost router, needed because # DCreadhost might end up as part of +local_domains hub_user_smarthost: debug_print = "R: hub_user_smarthost for $local_part@$domain" driver = manualroute domains = DCreadhost transport = remote_smtp_smarthost route_list = * DCsmarthost byname host_find_failed = defer same_domain_copy_routing = yes check_local_user .endif ##################################################### ### end router/500_exim-config_hubuser ##################################################### ##################################################### ### router/600_exim-config_userforward ##################################################### # router/600_exim-config_userforward ################################# # This router handles forwarding using traditional .forward files in users' # home directories and filtering with exim's builtin filter language. # # The no_verify setting means that this router is skipped when Exim is # verifying addresses. Similarly, no_expn means that this router is skipped if # Exim is processing an EXPN command. # # The check_ancestor option means that if the forward file generates an # address that is an ancestor of the current one, the current one gets # passed on instead. This covers the case where A is aliased to B and B # has a .forward file pointing to A. # # The four transports specified at the end are those that are used when # forwarding generates a direct delivery to a directory, or a file, or to a # pipe, or sets up an auto-reply, respectively. # userforward: debug_print = "R: userforward for $local_part@$domain" driver = redirect domains = +local_domains check_local_user file = $home/.forward no_verify no_expn check_ancestor allow_filter directory_transport = address_directory file_transport = address_file pipe_transport = address_pipe reply_transport = address_reply skip_syntax_errors syntax_errors_to = real-$local_part@$domain syntax_errors_text = \ This is an automatically generated message. An error has\n\ been found in your .forward file. Details of the error are\n\ reported below. While this error persists, you will receive\n\ a copy of this message for every message that is addressed\n\ to you. If your .forward file is a filter file, or if it is\n\ a non-filter file containing no valid forwarding addresses,\n\ a copy of each incoming message will be put in your normal\n\ mailbox. If a non-filter file contains at least one valid\n\ forwarding address, forwarding to the valid addresses will\n\ happen, and those will be the only deliveries that occur. ##################################################### ### end router/600_exim-config_userforward ##################################################### ##################################################### ### router/700_exim-config_procmail ##################################################### procmail: debug_print = "R: procmail for $local_part@$domain" driver = accept domains = +local_domains check_local_user transport = procmail_pipe # emulate OR with "if exists"-expansion require_files = ${local_part}:\ ${if exists{/etc/procmailrc}\ {/etc/procmailrc}{${home}/.procmailrc}}:\ +/usr/bin/procmail no_verify no_expn ##################################################### ### end router/700_exim-config_procmail ##################################################### ##################################################### ### router/800_exim-config_maildrop ##################################################### ### router/800_exim-config_maildrop ################################# maildrop: debug_print = "R: maildrop for $local_part@$domain" driver = accept domains = +local_domains check_local_user transport = maildrop_pipe require_files = ${local_part}:${home}/.mailfilter:+/usr/bin/maildrop no_verify no_expn ##################################################### ### end router/800_exim-config_maildrop ##################################################### ##################################################### ### router/900_exim-config_local_user ##################################################### ### router/900_exim-config_local_user ################################# local_user: debug_print = "R: local_user for $local_part@$domain" driver = accept domains = +local_domains check_local_user local_parts = ! root transport = LOCAL_DELIVERY ##################################################### ### end router/900_exim-config_local_user ##################################################### ##################################################### ### router/mmm_mail4root ##################################################### ### router/mmm_mail4root ################################# # deliver mail addressed to root to /var/mail/mail as user mail:mail # if it was not redirected in /etc/aliases or by other means # Exim cannot deliver as root since 4.24 (FIXED_NEVER_USERS) mail4root: debug_print = "R: mail4root for $local_part@$domain" driver = redirect domains = +local_domains data = /var/mail/mail file_transport = address_file local_parts = root user = mail group = mail ##################################################### ### end router/mmm_mail4root ##################################################### ##################################################### ### transport/00_exim-config_header ##################################################### ###################################################################### # TRANSPORTS CONFIGURATION # ###################################################################### # ORDER DOES NOT MATTER # # Only one appropriate transport is called for each delivery. # ###################################################################### # A transport is used only when referenced from a router that successfully # handles an address. begin transports ##################################################### ### end transport/00_exim-config_header ##################################################### ##################################################### ### transport/30_exim-config_address_file ##################################################### # This transport is used for handling deliveries directly to files that are # generated by aliasing or forwarding. # address_file: debug_print = "T: address_file for $local_part@$domain" driver = appendfile delivery_date_add envelope_to_add return_path_add ##################################################### ### end transport/30_exim-config_address_file ##################################################### ##################################################### ### transport/30_exim-config_address_pipe ##################################################### # This transport is used for handling pipe deliveries generated by alias or # .forward files. If the commands fails and produces any output on standard # output or standard error streams, the output is returned to the sender # of the message as a delivery error. # You can set different transports for aliases and forwards if you want to # - see the references to address_pipe in the routers section above. address_pipe: debug_print = "T: address_pipe for $local_part@$domain" driver = pipe return_fail_output ##################################################### ### end transport/30_exim-config_address_pipe ##################################################### ##################################################### ### transport/30_exim-config_address_reply ##################################################### # This transport is used for handling autoreplies generated by the filtering # option of the userforward router. # address_reply: debug_print = "T: autoreply for $local_part@$domain" driver = autoreply ##################################################### ### end transport/30_exim-config_address_reply ##################################################### ##################################################### ### transport/30_exim-config_mail_spool ##################################################### ### transport/30_exim-config_mail_spool # This transport is used for local delivery to user mailboxes in traditional # BSD mailbox format. # mail_spool: debug_print = "T: appendfile for $local_part@$domain" driver = appendfile file = /var/mail/$local_part delivery_date_add envelope_to_add return_path_add group = mail mode = 0660 mode_fail_narrower = false ##################################################### ### end transport/30_exim-config_mail_spool ##################################################### ##################################################### ### transport/30_exim-config_maildir_home ##################################################### ### transport/30_exim-config_maildir_home ################################# # Use this instead of mail_spool if you want to to deliver to Maildir in # home-directory - change the definition of LOCAL_DELIVERY # maildir_home: debug_print = "T: maildir_home for $local_part@$domain" driver = appendfile .ifdef MAILDIR_HOME_MAILDIR_LOCATION directory = MAILDIR_HOME_MAILDIR_LOCATION .else directory = $home/Maildir .endif .ifdef MAILDIR_HOME_CREATE_DIRECTORY create_directory .endif .ifdef MAILDIR_HOME_CREATE_FILE create_file = MAILDIR_HOME_CREATE_FILE .endif delivery_date_add envelope_to_add return_path_add maildir_format .ifdef MAILDIR_HOME_DIRECTORY_MODE directory_mode = MAILDIR_HOME_DIRECTORY_MODE .else directory_mode = 0700 .endif .ifdef MAILDIR_HOME_MODE mode = MAILDIR_HOME_MODE .else mode = 0600 .endif mode_fail_narrower = false ##################################################### ### end transport/30_exim-config_maildir_home ##################################################### ##################################################### ### transport/30_exim-config_maildrop_pipe ##################################################### maildrop_pipe: debug_print = "T: maildrop_pipe for $local_part@$domain" driver = pipe path = "/bin:/usr/bin:/usr/local/bin" command = "/usr/bin/maildrop" return_path_add delivery_date_add envelope_to_add ##################################################### ### end transport/30_exim-config_maildrop_pipe ##################################################### ##################################################### ### transport/30_exim-config_procmail_pipe ##################################################### procmail_pipe: debug_print = "T: procmail_pipe for $local_part@$domain" driver = pipe path = "/bin:/usr/bin:/usr/local/bin" command = "/usr/bin/procmail" return_path_add delivery_date_add envelope_to_add ##################################################### ### end transport/30_exim-config_procmail_pipe ##################################################### ##################################################### ### transport/30_exim-config_remote_smtp ##################################################### ### transport/30_exim-config_remote_smtp ################################# # This transport is used for delivering messages over SMTP connections. remote_smtp: debug_print = "T: remote_smtp for $local_part@$domain" driver = smtp ##################################################### ### end transport/30_exim-config_remote_smtp ##################################################### ##################################################### ### transport/30_exim-config_remote_smtp_smarthost ##################################################### ### transport/30_exim-config_remote_smtp_smarthost ################################# # This transport is used for delivering messages over SMTP connections # to a smarthost. The local host tries to authenticate and does some # modification in headers and return-path. # This transport is used for smarthost and satellite configurations. remote_smtp_smarthost: debug_print = "T: remote_smtp_smarthost for $local_part@$domain" driver = smtp hosts_try_auth = ${if exists {CONFDIR/passwd.client}{DCsmarthost}{}} tls_tempfail_tryclear = false DEBCONFheaders_rewriteDEBCONF DEBCONFreturn_pathDEBCONF ##################################################### ### end transport/30_exim-config_remote_smtp_smarthost ##################################################### ##################################################### ### transport/35_exim-config_address_directory ##################################################### # This transport is used for handling file addresses generated by alias # or .forward files if the path ends in "/", which causes it to be treated # as a directory name rather than a file name. address_directory: debug_print = "T: address_directory for $local_part@$domain" driver = appendfile envelope_to_add = true return_path_add = true check_string = "" escape_string = "" maildir_format ##################################################### ### end transport/35_exim-config_address_directory ##################################################### ##################################################### ### retry/00_exim-config_header ##################################################### ###################################################################### # RETRY CONFIGURATION # ###################################################################### begin retry ##################################################### ### end retry/00_exim-config_header ##################################################### ##################################################### ### retry/30_exim-config ##################################################### # This single retry rule applies to all domains and all errors. It specifies # retries every 15 minutes for 2 hours, then increasing retry intervals, # starting at 1 hour and increasing each time by a factor of 1.5, up to 16 # hours, then retries every 6 hours until 4 days have passed since the first # failed delivery. # Please note that these rules only limit the frequenzy of retries, the # effective retry-time depends on the frequenzy of queue-running, too. # See QUEUEINTERVAL in /etc/default/exim. # Domain Error Retries # ------ ----- ------- * * F,2h,15m; G,16h,1h,1.5; F,4d,6h ##################################################### ### end retry/30_exim-config ##################################################### ##################################################### ### rewrite/00_exim-config_header ##################################################### ###################################################################### # REWRITE CONFIGURATION # ###################################################################### begin rewrite ##################################################### ### end rewrite/00_exim-config_header ##################################################### ##################################################### ### rewrite/31_exim-config_rewriting ##################################################### ### rewrite/31_exim-config_rewriting ################################# # This rewriting rule is particularily useful for dialup users who # don't have their own domain, but could be useful for anyone. # It looks up the real address of all local users in a file *@+local_domains "${lookup{${local_part}}lsearch{/etc/email-addresses}\ {$value}fail}" Ffrs # identical rewriting rule for /etc/mailname DEBCONFrewriteemailaddresses_mailnameDEBCONF # # Fold all sub domains for *.datadisk.co.uk into datadisk.co.uk # For example root@somehost.datadisk.co.uk will be rewritten as # root@datadisk.co.uk. This is to hide our internal server # structure from the rest of the world # *@*.datadisk.co.uk $1@datadisk.co.uk # # OK ... Here is the hack to get datadiskcorp folded back into # the datadisk domain. Any From:, Sender: or Reply-to: fields with # xxx@datadiskcorp.co.uk will be rewritten into xxx@datadisk.co.uk # *@datadiskcorp.co.uk $1@datadisk.co.uk Ffrsbc ##################################################### ### end rewrite/31_exim-config_rewriting ##################################################### ##################################################### ### auth/00_exim-config_header ##################################################### ###################################################################### # AUTHENTICATION CONFIGURATION # ###################################################################### begin authenticators ##################################################### ### end auth/00_exim-config_header ##################################################### ##################################################### ### auth/30_exim-config_examples ##################################################### ### auth/30_exim-config_examples ################################# # The examples below are for server side authentication # They allow two styles of plain-text authentication against an # CONFDIR/passwd file which should have user names in the first column # and crypted passwords in the second. The columns need to be separated # by ':'. Please note that apache's htpasswd program generates a file # in the correct format, but uses a different crypt scheme. So, # htpassword will _NOT_ work for exim. # For CRAM-MD5 exim needs access to the UNENCRYPTED passwd - the example # below assumes it is available in the third column of CONFDIR/passwd # Hosts that are allowed to use AUTH are defined by the # auth_advertise_hosts option in the main configuration. The default is # "*", which allows authentication to all hosts over all kinds of # connections if there is at least one authenticator defined here. # Authenticators which rely on unencrypted clear text passwords don't # advertise on unencrypted connections by default. You can set # AUTH_SERVER_ALLOW_NOTLS_PASSWORDS to advertise unencrypted clear text # password based authenticators on all connections. # plain_server: # driver = plaintext # public_name = PLAIN # server_condition = "${if crypteq{$3}{${extract{1}{:}{${lookup{$2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}" # server_set_id = $2 # server_prompts = : # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # # login_server: # driver = plaintext # public_name = LOGIN # server_prompts = "Username:: : Password::" # server_condition = "${if crypteq{$2}{${extract{1}{:}{${lookup{$1}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}" # server_set_id = $1 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # # cram_md5_server: # driver = cram_md5 # public_name = CRAM-MD5 # server_secret = ${extract{2}{:}{${lookup{$1}lsearch{CONFDIR/passwd}{$value}fail}}} # server_set_id = $1 # Here is an example of CRAM-MD5 authentication against PostgreSQL: # # psqldb_auth_server: # driver = cram_md5 # public_name = CRAM-MD5 # server_secret = ${lookup pgsql{SELECT pw FROM users WHERE username = '${quote_pgsql:$1}'}{$value}fail} # server_set_id = $1 # Authenticate against local passwords using sasl2-bin # Requires exim_uid to be a member of sasl group, see README.Debian.gz # plain_saslauthd_server: # driver = plaintext # public_name = PLAIN # server_condition = ${if saslauthd{{$2}{$3}}{1}{0}} # server_set_id = $2 # server_prompts = : # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # # login_saslauthd_server: # driver = plaintext # public_name = LOGIN # server_prompts = "Username:: : Password::" # # don't send system passwords over unencrypted connections # server_condition = ${if saslauthd{{$1}{$2}}{1}{0}} # server_set_id = $1 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # # ntlm_sasl_server: # driver = cyrus_sasl # public_name = NTLM # server_realm = # server_set_id = $1 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # # digest_md5_sasl_server: # driver = cyrus_sasl # public_name = DIGEST-MD5 # server_realm = # server_set_id = $1 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # Authentcate against cyrus-sasl # This is mainly untested, please report any problems to # pkg-exim-users@lists.alioth.debian.org. If you have success with # using these authenticators until May 1 2005, please report as well. # cram_md5_sasl_server: # driver = cyrus_sasl # public_name = CRAM-MD5 # server_realm = # server_set_id = $1 # # plain_sasl_server: # driver = cyrus_sasl # public_name = PLAIN # server_realm = # server_set_id = $1 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # # login_sasl_server: # driver = cyrus_sasl # public_name = LOGIN # server_realm = # server_set_id = $1 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # Authenticate against courier authdaemon # This has been copied from # http://www.devco.net/archives/2004/06/10/smtp_auth_with_exim_and_courier_authdaemon.php # (thanks to r. i. pienaar). This has been reported as "working" with # the Debian packages by Sven Geggus. Possible pitfall: access rights # on /var/run/courier/authdaemon/socket. # plain_courier_authdaemon: # driver = plaintext # public_name = PLAIN # server_condition = \ # ${if eq {${readsocket{/var/run/courier/authdaemon/socket}\ # {AUTH ${strlen:exim\nlogin\n$2\n$3\n}\nexim\nlogin\n$2\n$3\n}}}{FAIL\n}{no}{yes}} # server_set_id = $2 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # # login_courier_authdaemon: # driver = plaintext # public_name = LOGIN # server_prompts = Username:: : Password:: # server_condition = ${if eq {${readsocket{/var/run/courier/authdaemon/socket} \ # {AUTH ${strlen:exim\nlogin\n$1\n$2\n}\nexim\nlogin\n$1\n$2\n}}}{FAIL\n}{no}{yes}} # server_set_id = $1 # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif # This one is a bad hack to support the broken version 4.xx of # Microsoft Outlook Express which violates the RFCs by demanding # "250-AUTH=" instead of "250-AUTH ". # It has to be the last authenticator to work and has not been tested # well. Use at your own risk. # See the thread entry point from # http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050214/msg00213.html # for the related discussion on the exim-users mailing list. # Thanks to Fred Viles for this great work. # support_broken_outlook_express_4_server: # driver = plaintext # public_name = "\r\n250-AUTH=PLAIN LOGIN" # server_prompts = User Name : Password # server_condition = no # .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS # server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} # .endif ############## # See /usr/share/doc/exim-base/README.Debian.gz ############## # These examples below are the equivalent for client side authentication. # They get the passwords from CONFDIR/passwd.client. This file should have # three columns separated by colons, the first contains the name of the # mailserver to authenticate against, the second the username and the third # contains the password. ### # example for CONFDIR/passwd.client ### mail.server:blah:secret ### # default entry: ### *:bar:foo # Because AUTH PLAIN and AUTH LOGIN send the password in clear, we # only allow these mechanisms over encrypted connections by default. # You can set AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS to allow unencrypted # clear text password authentication on all connections. cram_md5: driver = cram_md5 public_name = CRAM-MD5 client_name = ${extract{1}{:}{${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}} client_secret = ${extract{2}{:}{${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}} plain: driver = plaintext public_name = PLAIN .ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS client_send = "${if !eq{$tls_cipher}{}{\ ^${extract{1}{::}\ {${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}}\ ^${extract{2}{::}\ {${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}}\ }fail}" .else client_send = "^${extract{1}{::}{${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}}^${extract{2}{::}{${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}}" .endif login: driver = plaintext public_name = LOGIN .ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS # Return empty string if not non-TLS AND looking up $host in passwd-file # yields a non-empty string; fail otherwise. client_send = "${if and{\ {!eq{$tls_cipher}{}}\ {!eq\ {${lookup{$host}lsearch*{CONFDIR/passwd.client}\ {$value}fail}}\ {}}\ }\ {}fail}\ : ${extract{1}{::}\ {${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}} \ : ${extract{2}{::}\ {${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}}" .else # Return empty string if looking up $host in passwd-file yields a # non-empty string; fail otherwise. client_send = "${if !eq\ {${lookup\ {$host}lsearch*{CONFDIR/passwd.client}\ {$value}fail}}\ {}\ {}fail}\ : ${extract{1}{::}\ {${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}} \ : ${extract{2}{::}\ {${lookup{$host}lsearch*{CONFDIR/passwd.client}{$value}fail}}}" .endif ##################################################### ### end auth/30_exim-config_examples #####################################################