Dnia 9.05.2025 o godz. 16:18:35 Matus UHLAR - fantomas via Postfix-users pisze:
I use pyspf-milter which is from the same package I believe (python,
there's also perl version policyd-spf) and it only accepts/rejects
e-mail and adds Authentication-Results: header.
On 09.05.25 16:41, Jaroslaw Rafa via Postfix-users wrote:
Check if mails that are failing DKIM:
- already contain "Authentication-Results:" header before being processed by
pyspf-milter, and that header is DKIM signed
or
Authentication-Results was not signed in OP's mail...
Question: aren't those mails failing DKIM from mailing lists?
Because that is quite often case where DKIM does not pass.
That may be a completely different issue.
exactly, I just wanted to be sure if the problem si not misunderstood - I
also receive many invalid DKIM headers from mailing lists, because my DMARC
policy is none and mailman2 in that case often does not rewrite From: header
On 09.05.25 17:17, Benny Pedersen via Postfix-users wrote:
Matus UHLAR - fantomas via Postfix-users skrev den 2025-05-09 16:18:
[...]
your mail gives this result here
Benny, you should read mail more carefully. I am not the OP and don't have
the problem.
On 09.05.25 17:00, Phil Stracchino via Postfix-users wrote:
Consider replacing policyd-spf, opendkim, AND opendmarc with rspamd.
It does all of those jobs, does them *better*, and is actively
maintained.
This advice is irelevant, because none of the mentioned software
causes the issue and thus changing them is not going to fix it.
On 10.05.25 09:12, Ken Biggs via Postfix-users wrote:
Woo hoo! I think I found the issue! I'm guessing this is probably an obvious
thing, but I went line by line through my main.cf and found:
mime_header_checks = regexp:/etc/postfix/header_checks
header_checks = regexp:/etc/postfix/header_checks
Not sure when I added those (it's been quite a while), but commenting them out
seems to have resolved the issue!
just do ls -l /etc/postfix/header_checks
I'm not sure if I need to be doing the header checks a different way.
Recommendations would be appreciated.
Thank you to everyone! Your input and help finally got me looking in the right
places for the right things! The users on this mailing list are amazing!
It's not the checks what caused your problem, it was something in those
checks. I am now curious:
Which headers did you add/modify/delete, which caused DKIM to fail?
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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