Networking issue

CharlesC

I am able to telnet my mail server using its web address from anywhere, but when I try from the same network the mail server is I get:

telnet: Unable to connect to remote host: Connection refused

I am able to telnet using the servers WAN IP, but not using its web address.

What do I need to do?

james.carson

Hi @CharlesC

If you're able to do so using the WAN IP, but not the web address (DNS name) whatever internal DNS server you've defined is likely directing you to a different IP or a wrong IP.

If you type "nslookup <mailserver.name>" do you see the IP address come back that you expect?

If the address is incorrect, you may want to check your local DNS server.

CharlesC

Hi James, From inside the network when I ping the web address I get a response from the correct external IP.

james.carson

Hi @CharlesC
Check that your SMTP policy is allowing communications from "Any-Trusted" or "Any-Optional."

See SNAT Loopback here:
https://www.watchguard.com/help/docs/help-center/en-US/Content/en-US/Fireware/nat/nat_loopback_static_c.html