I am struggling for a couple of hours with my second PMG installation and I am encountering an error while testing inbound mail.
Here is what I am getting in return to the sender's mailbox:
and here is what I am getting in the Tracking Center:
Here is my PMG relay configuration:
Sometimes important emails that shouldn't be recognized as spam are mistakenly quarantined.
If I forward a blocked message from the quarantine, the recipient receives an email from postmaster@hostname. It is impossible to continue correspondence with the sender of this letter, since the...
I have a VM with Nginx on it that I'm trying to test with and although everything else is working, I can see in the VM firewall logs within the Proxmox console that all the traffic from the internet is dropped.
The port forwarding on my router is fine and working as I can see the traffic...