There's got to be a better way to do this but this seems to works so
far. The idea is that you have a test file that has a list of prohibited
subject strings in it. This file allows for blank lines and comments
starting with #.
You might be wondering why I'm going to the trouble to do this. Well,
next I'm going to write a squirrelmail modules so that every user can
edit their personal subject string blockers.
There's got to be a cleaner way to do this.
# - Master Subject Block List
deny message = REJECTED - Subject in master block list - F=$h_From:
T=$h_X-Recipient:
log_message = REJECTED - Subject in master block list - F=$h_From:
T=$h_X-Recipient:
condition = ${if exists{/etc/exim/control/blocksubject.txt}\
{${if
match{$h_Subject:}{\x28${sg{${sg{${sg{${readfile{/etc/exim/control/blocksubject.txt}{|}}}{\\|+}{|}}}{#.*?\\|}{}}}{\\|\$}{}}\x29}{true}{false}}}\
{no}}
Here's the personal version:
# - Personal Subject Block List
deny message = REJECTED - Subject in personal block list - F=$h_From:
T=$h_X-Recipient:
log_message = REJECTED - Subject in personal block list - F=$h_From:
T=$h_X-Recipient:
condition = ${if
exists{/etc/exim/control/domains/${domain:$h_X-Recipient:}/users/${local_part:$h_X-Recipient:}/blocksubject.txt}\
{${if
match{$h_Subject:}{\x28${sg{${sg{${sg{${readfile{/etc/exim/control/domains/${domain:$h_X-Recipient:}/users/${local_part:$h_X-Recipient:}/blocksubject.txt}{|}}}{\\|+}{|}}}{#.*?\\|}{}}}{\\|\$}{}}\x29}{true}{false}}}\
{no}}
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