On 11.09.24 09:11, natan via Postfix-users wrote:
The problem is with DKIM signing when I try to reply to a message
and the external recipient has DMARC verification
If I have a p=none policy in DMARC it works correctly but if
p=reject it is known - the message is rejected due to an error for
DKIM Because DKIM also signs the subject and it is changed by sieve
what error exactly happens here? Does the remote server refuse your e-mail
from your smtp server?
W dniu 11.09.2024 o 11:34, Matus UHLAR - fantomas via Postfix-users pisze:
how and when do you DKIM-SIGN yourt outgoing mail? This looks like
you first sign outgoing mail and then modify it so DKIM signature
gets invalidated.
On 11.09.24 15:01, natan via Postfix-users wrote:
user send e-mail via server "only for send" smtp.domain.ltd
smtp.domain.ltd have postfix:
FYI you should use example.com, example.net or other reserved domain name
instead of randomly selected example.com
...
milter_protocol = 2
milter_default_action = accept
smtpd_milters = inet:localhost:12301
non_smtpd_milters = inet:localhost:12301
this milter should DKIM-sign messages your users send.
....
e-mail go to my phisical separate machine (MX) like mx.domain.ltd
...
virtual_transport = lmtp:inet:10.12.12.1:24
...
and via lmt go to klaster dovecotdirector (i have 20 dovecot nodes)
any dovecot via nfs connect to storage
and any user have own sieve and sieve add headders
The sieve filter has individual exceptions and a set of dependencies set
Of course, this is an additional safeguard that can help
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
One OS to rule them all, One OS to find them,
One OS to bring them all and into darkness bind them
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