Hello Wietse,
thanks alot for the hint about the base64 encoding of the pflogsumm
report. I would not have thought of doing this. I now redirect the
output of the report to a .txt file, which I then send by e-mail using a
perl script with base64 encoding. That works wonderfully!
So that the pickup service is no longer ‘messed up’, I made the changes
to the master.cf. Now, of course, the warning message no longer appears.
Great! Many thanks again.
Am 09.12.2024 um 19:59 schrieb Wietse Venema via Postfix-users:
Andreas Kuhlen via Postfix-users:
Hello,
I run a Postfix server with Amavis/Clamav, Spamassassin and run header
and body checks for mails. However, this should only apply to external
mails, as it happened that mails sent by a cronjob with a pflogsumm
report did not go through because they contained a word that was blocked
by the body checks.
Can you encode the text, like base64? It's not hard to generate a
MIME formatted message that content-transfer-encodine base64.
For this purpose, I created an IP alias (127.0.1.2) in the /etc/hosts
file and then in the /etc/postfix/master.cf according to the
instructions https://www.postfix.org/BUILTIN_FILTER_README.html#remote_only
and added the last 6 lines. Now it works that no header/body checks
are performed for the pflogsumm report. However, I get a warning message
every minute:
Maybe Hobbit's header_checks feature can handle this?
/pattern/ PASS optional text...
Log a "pass:" record with the optional text... (or log a generic
text), and turn off header, body, and Milter inspection for the
remainder of this message.
Note: this feature relies on trust in information that is easy
to forge.
This feature is available in Postfix 3.2 and later.
However, I get a warning message
postfix/master[182681]: warning: master_wakeup_timer_event: service
pickup(public/pickup): Connection refused
You messed the pickup service definition in master.cf.
Wietse
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