Hi,
We just replaced our LANCOM router with a Sophos UTM 120.
I'm using a new out of the box UTM with version 9.005-16.
Because our ISP is blocking inbound port 25, we asked our antispam provider to deliver our email on port 26. This worked great with the LANCOM router.
I just created a new NAT rule on the Sophos UTM, but somehow it isn't working.
This is my NAT rule:
Position: 0
Rule Type: DNAT (Destination)
For traffic from: ANY
Using service: SMTP26 (service def.: TCP Dest. port: 26, Source port: 1:65535)
Going to: External (WAN address)
Change destination to: Mailserver
And the service to: SMTP
Automatic firewall rule: enabled.
If I telnet port 26 on our public IP, I get nothing.
In the internal LAN I can connect to the mailserver on port 25.
What am I doing wrong?
These are my masquerading rules:
Rule 1: Internal (network) -> External (WAN)
Rule 2: Any -> Internal
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