You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
2.8 KiB
Plaintext
85 lines
2.8 KiB
Plaintext
|
|
### acl/40_exim4-config_check_data
|
|
#################################
|
|
|
|
# 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.
|
|
|
|
acl_check_data:
|
|
|
|
# Deny if the message contains an overlong line. Per the standards
|
|
# we should never receive one such via SMTP.
|
|
#
|
|
.ifndef IGNORE_SMTP_LINE_LENGTH_LIMIT
|
|
deny message = maximum allowed line length is 998 octets, \
|
|
got $max_received_linelength
|
|
condition = ${if > {$max_received_linelength}{998}}
|
|
.endif
|
|
|
|
# Deny if the headers contain badly-formed addresses.
|
|
#
|
|
.ifndef NO_CHECK_DATA_VERIFY_HEADER_SYNTAX
|
|
deny
|
|
!acl = acl_local_deny_exceptions
|
|
!verify = header_syntax
|
|
message = header syntax
|
|
log_message = header syntax ($acl_verify_message)
|
|
.endif
|
|
|
|
|
|
# require that there is a verifiable sender address in at least
|
|
# one of the "Sender:", "Reply-To:", or "From:" header lines.
|
|
.ifdef CHECK_DATA_VERIFY_HEADER_SENDER
|
|
deny
|
|
message = No verifiable sender address in message headers
|
|
!acl = acl_local_deny_exceptions
|
|
!verify = header_sender
|
|
.endif
|
|
|
|
|
|
# Deny if the message contains malware. Before enabling this check, you
|
|
# must install a virus scanner and set the av_scanner option in the
|
|
# main configuration.
|
|
#
|
|
# exim4-daemon-heavy must be used for this section to work.
|
|
#
|
|
# deny
|
|
# malware = *
|
|
# message = This message was detected as possible malware ($malware_name).
|
|
|
|
|
|
# Add headers to a message if it is judged to be spam. Before enabling this,
|
|
# you must install SpamAssassin. You also need to set the spamd_address
|
|
# option in the main configuration.
|
|
#
|
|
# exim4-daemon-heavy must be used for this section to work.
|
|
#
|
|
# Please note that this is only suiteable as an example. There are
|
|
# multiple issues with this configuration method. For example, if you go
|
|
# this way, you'll give your spamassassin daemon write access to the
|
|
# entire exim spool which might be a security issue in case of a
|
|
# spamassassin exploit.
|
|
#
|
|
# See the exim docs and the exim wiki for more suitable examples.
|
|
#
|
|
# warn
|
|
# spam = Debian-exim:true
|
|
# add_header = X-Spam_score: $spam_score\n\
|
|
# X-Spam_score_int: $spam_score_int\n\
|
|
# X-Spam_bar: $spam_bar\n\
|
|
# X-Spam_report: $spam_report
|
|
|
|
|
|
# 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
|