[solved] Mail setup pop, smtp, blah blah blah

[djmega01]

I can send/receive from the webmail, but not from an external mail app (Thunderbird is the one I use)
This is the result I get from nslookup on any of the domains I host in my dedi:

DNS server handling your query: localhost
DNS server's address: 127.0.0.1#53

Non-authoritative answer:
Name: mydomain.com
Address: my server's IP