X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/aa6e77afb5ba7df42fcff06cac744b1f4a4105d2..a76f64c3d496f6e448db3fb0c88fb15c2d1d99db:/src/src/configure.default diff --git a/src/src/configure.default b/src/src/configure.default index 15ca3fdae..cf38305e5 100644 --- a/src/src/configure.default +++ b/src/src/configure.default @@ -9,7 +9,7 @@ # configuration file. There are many more than are mentioned here. The # manual is in the file doc/spec.txt in the Exim distribution as a plain # ASCII file. Other formats (PostScript, Texinfo, HTML, PDF) are available -# from the Exim ftp sites. The manual is also online at the Exim web sites. +# from the Exim ftp sites. The manual is also online at the Exim website. # This file is divided into several parts, all but the first of which are @@ -119,8 +119,11 @@ hostlist relay_from_hosts = localhost # manual for details. The lists above are used in the access control lists for # checking incoming messages. The names of these ACLs are defined here: -acl_smtp_rcpt = acl_check_rcpt -acl_smtp_data = acl_check_data +acl_smtp_rcpt = acl_check_rcpt +.ifdef _HAVE_PRDR +acl_smtp_data_prdr = acl_check_prdr +.endif +acl_smtp_data = acl_check_data # You should not change those settings until you understand how ACLs work. @@ -262,8 +265,15 @@ dns_dnssec_ok = 1 # Enable an efficiency feature. We advertise the feature; clients # may request to use it. For multi-recipient mails we then can # reject or accept per-user after the message is received. +# This supports recipient-dependent content filtering; without it +# you have to temp-reject any recipients after the first that have +# incompatible filtering, and do the filtering in the data ACL. +# Even with this enabled, you must support the old style for peers +# not flagging support for PRDR (visible via $prdr_requested). # +.ifdef _HAVE_PRDR prdr_enable = true +.endif # By default, Exim expects all envelope addresses to be fully qualified, that @@ -283,7 +293,7 @@ prdr_enable = true # detail than the default. Adjust to suit. log_selector = +smtp_protocol_error +smtp_syntax_error \ - +tls_certificate_verified + +tls_certificate_verified # If you want Exim to support the "percent hack" for certain domains, @@ -473,8 +483,8 @@ acl_check_rcpt: # Insist that a HELO/EHLO was accepted. - require message = nice hosts say HELO first - condition = ${if def:sender_helo_name} + require message = nice hosts say HELO first + condition = ${if def:sender_helo_name} # Insist that any other recipient address that we accept is either in one of # our local domains, or is in a domain for which we explicitly allow @@ -516,12 +526,45 @@ acl_check_rcpt: # require verify = csa ############################################################################# + ############################################################################# + # If doing per-user content filtering then recipients with filters different + # to the first recipient must be deferred unless the sender talks PRDR. + # + # defer !condition = $prdr_requested + # condition = ${if > {0}{$receipients_count}} + # condition = ${if !eq {$acl_m_content_filter} \ + # {${lookup PER_RCPT_CONTENT_FILTER}}} + # warn !condition = $prdr_requested + # condition = ${if > {0}{$receipients_count}} + # set acl_m_content_filter = ${lookup PER_RCPT_CONTENT_FILTER} + ############################################################################# + # At this point, the address has passed all the checks that have been # configured, so we accept it unconditionally. accept +# This ACL is used once per recipient, for multi-recipient messages, if +# we advertised PRDR. It can be used to perform receipient-dependent +# header- and body- based filtering and rejections. +# We set a variable to record that PRDR was active used, so that checking +# in the data ACL can be skipped. + +.ifdef _HAVE_PRDR +acl_check_prdr: + warn set acl_m_did_prdr = y + + ############################################################################# + # do lookup on filtering, with $local_part@$domain, deny on filter match + # + # deny set acl_m_content_filter = ${lookup PER_RCPT_CONTENT_FILTER} + # condition = ... + ############################################################################# + + accept +.endif + # This ACL is used after the contents of a message have been received. This # is the ACL in which you can test a message's headers or body, and in # particular, this is where you can invoke external virus or spam scanners. @@ -541,9 +584,9 @@ acl_check_data: # Deny if the headers contain badly-formed addresses. # - deny !verify = header_syntax - message = header syntax - log_message = header syntax ($acl_verify_message) + deny !verify = header_syntax + message = header syntax + log_message = header syntax ($acl_verify_message) # Deny if the message contains a virus. Before enabling this check, you # must install a virus scanner and set the av_scanner option above. @@ -561,6 +604,19 @@ acl_check_data: # X-Spam_bar: $spam_bar\n\ # X-Spam_report: $spam_report + ############################################################################# + # No more tests if PRDR was actively used. + # accept condition = ${if def:acl_m_did_prdr} + # + # To get here, all message recipients must have identical per-user + # content filtering (enforced by RCPT ACL). Do lookup for filter + # and deny on match. + # + # deny set acl_m_content_filter = ${lookup PER_RCPT_CONTENT_FILTER} + # condition = ... + ############################################################################# + + # Accept the message. accept @@ -631,7 +687,6 @@ dnslookup: ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8 # if ipv6-enabled then instead use: # ignore_target_hosts = <; 0.0.0.0 ; 127.0.0.0/8 ; ::1 - dnssec_request_domains = * no_more # This closes the ROUTER_SMARTHOST ifdef around the choice of routing for @@ -753,9 +808,8 @@ begin transports remote_smtp: driver = smtp message_size_limit = ${if > {$max_received_linelength}{998} {1}{0}} -.ifdef _HAVE_DANE - dnssec_request_domains = * - hosts_try_dane = * +.ifdef _HAVE_PRDR + hosts_try_prdr = * .endif @@ -795,6 +849,9 @@ smarthost_smtp: tls_require_ciphers = SECURE192:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1 .endif .endif +.ifdef _HAVE_PRDR + hosts_try_prdr = * +.endif # This transport is used for local delivery to user mailboxes in traditional