Hi everybody,
I have very limited experience with configuring Exim. I''m using exim4
on
Lenny with a MySQL user database, which is working fine, but I want
exim4 to run a shell script every time the transport
local_mysql_delivery delivers a mail, with the username of the user
receiving the mail (local part of the email address) as argument for
that script.
I''ve tried using the transport_filter, but it doesn''t work.
This is the transport in question:
local_mysql_delivery:
driver = appendfile
# file = /var/mail/$local_part
# directory = /home/$local_part/.maildir
directory = /var/mail/${domain}/${local_part}/
maildir_format
delivery_date_add
envelope_to_add
return_path_add
user = mail
group = mail
mode = 0660
# running the delivery alert script
# transport_filter = /bin/sh -c /usr/local/bin/maildelivered.sh
''${quote_mysql:$local_part}''
# at this time, we know a local user to get his individual
preferences to tag the mail
# the ''${eval:$header_X-Spam-Score-Int:}'' is is a hack to
cope with
negative ints that seem to be parsed as strings, thus failing the comparsion
# if there''s no X-Spam-Score-Int header set by data-acl above,
don''t
panic ;-)
# another hack is that we remove important headers, we add later to
be sure there are no multiple versions from earlier relays, or forged
ones (this is BUGGY right now as it merges all equal headers!)
# therefore i implemented the
${sg{$header_X-Spam-Score-Int:}{^.*\n}{}} regex hack, that strips all
headers_remove = Subject : X-Spam-Flag : X-Spam-Score-Int :
X-Spam-Score : X-Spam-Bar : X-Spam-Report
headers_add = "X-Spam-Threshold: ${lookup mysql{ \
SELECT spam_threshold \
FROM user \
WHERE
username=''${quote_mysql:$local_part}'' \
AND
domain=''${quote_mysql:$domain}'' \
AND
SMTP_allowed=''YES'' \
}{$value}{ERROR}}\n\
X-Spam-Score: $header_X-Spam-Score:\n\
X-Spam-Score-Int: $header_X-Spam-Score-Int:\n\
X-Spam-Bar: $header_X-Spam-Bar:\n\
X-Spam-Report: $header_X-Spam-Report:\n\
X-Spam-Flag: ${if def:header_X-Spam-Score-Int:{\
${if
>={${eval:${sg{$header_X-Spam-Score-Int:}{^.*\n}{}}}}\
{${lookup mysql{ \
${if
>={${eval:${sg{$header_X-Spam-Score-Int:}{^.*\n}{}}}}\
{${lookup mysql{ \
SELECT
spam_threshold*10 \
FROM user \
WHERE
username=''${quote_mysql:$local_part}'' \
AND
domain=''${quote_mysql:$domain}'' \
AND
SMTP_allowed=''YES'' \
}{$value}{ERROR}}}{YES}{NO}}\
}{\
UNKNOWN\
}}\n\
Subject: ${if def:header_X-Spam-Score-Int:{\
${if
>={${eval:${sg{$header_X-Spam-Score-Int:}{^.*\n}{}}}}\
{${lookup mysql{ \
SELECT
spam_threshold*10 \
FROM user \
WHERE
username=''${quote_mysql:$local_part}'' \
AND
domain=''${quote_mysql:$domain}'' \
AND
SMTP_allowed=''YES'' \
}{$value}{ERROR}}}{${lookup mysql{ \
SELECT spam_tag \
FROM user \
WHERE username=''${quote_mysql:$local_part}'' \
AND domain=''${quote_mysql:$domain}'' \
AND SMTP_allowed=''YES'' \
}{$value}{ERROR}}$h_subject:}{$h_subject:}}\
}{$h_subject:}}\n\
X-Delivered-To: $original_local_part@$original_domain
($local_part@$domain)\n\
X-Message-Age: $message_age"
The transport filter is commented out because if I use it, mails aren''t
delivered, and /var/log/exim4/mainlog gives me something like this:
2010-12-03 16:51:25 1POXtY-00035P-2l == abc at fooserver.net R=mysql_user
T=local_mysql_delivery defer (-24): transport filter process failed
(127) while writing to tmp/1291391485.H362240P11945.fooserver.net:
unable to execute command
What am I doing wrong? Should I use run instead of transport_filter, and
how exactly am I supposed to run a shell script from a transport? I
don''t need any feedback from that shell script (other than it did run
without errors), I just need exim to run that script every time a MySQL
user receives a mail.
Thanks in advance.
Nils Altenbach