Hi all!
I am running a mail (smtp,pop3,imap) server behind ASL. Routing port 25 (SMTP) via smtp-proxy works fine. For some reason, connections arriving on port 110 (POP3) or 143 (IMAP) are not routed through the firewall and I am not able to connect to the server from outside. Packet filter is set to “any / allow all” and should let all packets pass. I’ve tried for hours now but I don’t have a clue. Does anyone have an idea?
Here is the d-nat rule I’ve created: (IMAP is similar)
Any -> external_Interface / POP3 to internal_mailserver/POP3
I would be glad if someone knew how to help. Thanks in advance.
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