Before changing your mail server setup, you need to sort out DNS.
The metric for your mail server is 0 in a lookup. Odd. May work, but every
system I've set up actually uses a real number e.g. 5, 10
Secondly, the nameserver entry uses a CNAME to point to your mail server.
Change this. It should be an A record. A good rule of thumb is to never use
CNAMEs in conjunction with mail. Takes no more effort to create an A record.
Then try it.
Cheers,
--
Gordon Smith, MCP, TCP
Network Administrator
Horticultural Automation Ltd.
