No DKIM signature

[jeremy4949]

Hello

I have PMG (version 8.1.4 up to date) as a front-end server and a Debian Postfix / Dovecot server (Debian 12 up to date) for mail storage.
PMG is used to filter incoming and outgoing mail for spam and viruses.
I wanted to add the DKIM signature on Proxmox, I created the selector, configured the private and public key and declared it in the DNS.
I checked the DNS record for DKIM and it's OK.
But I have the impression that Proxmox doesn't sign outgoing mail.
During my tests when I consult the mail header I get 'dkim=unknown' and no log concerning the DKIM on PMG.
If I sign with my postfix on my backend server, it works fine.
I've checked my /etc/pmg/pmg.conf file and it's up to date with what's on the interface.
Do you have any ideas about this problem?

 

[Stoiko Ivanov]

please share text (as for example the part of the pmg.conf file) as text in

 blocks - it's much easier to read and quote.

else - make sure you send the mails to the internal port (defaults to 26).

and if this does not fix it - try removing the "sign all email" checkbox (it's not needed if you specify the dkim domains below)

 

[jeremy4949]

I just checked the postfix backend configuration, and it was sending to PMG port 25 and not 26.
It's a configuration error on my part, my bad :/
OK, since I'm going to declare all domains to be signed, I unchecked the “Sign All Outgoing Mail” box.
Thanks a lot for your help