Hi,

I already did port forwarding in router for NAS in port 5272 and I can operate it over internet. Adding port forwarding for port 25 didn't change mail sending over internet. 

I get error message in outlook- Diagnostic-Code: X-Postfix; Host or domain name not found. Name service error for name="mail.domain.ee" type=A: Host not found

Question is, what server's host name i must give in Xeams users editor that DNS servers MX record recognize?