I'm using SME Server 5.12.
Configured as 'Server and Gateway - dialup' not Private
Clients are Windows based, can not received outside POP3 mail.
Mail software (Calypso) says :
Failed to get mail from account: 'test@garamprod.com'
WINSOCK Error: Authoritative: Host not found. (Failed to look up the server name in DNS. Verify the server name or contact your System Administrator).
Failed to get mail from account: 'test@161.78.58.236'
WINSOCK Error: Host unreachable. (There is no route to the mail server. Verify the server name or contact your System Administrator).
Connection to socket failed.