are you sending the mails to the internal port?
are the mails coming from a domain that you have configured in DKIM domains?
plaese share the logs of such a mail...
We only use for outgoing sign dkim. The only thing we wanted is to use DKIM signature from outgoing mail gateway proxmox, not dkim from domain that become sender
I don't think I understand your request 100% - please share some logs - or headers - of mails that are not signed, but you want them to be signed - maybe this will help me get a picture!
thanks!
as said - please post logs (as text in code tags) - and your configuration (/etc/pmg/pmg.conf, and the dkim/relay domains) - also make sure you send mails to the internal port of PMG...