having a new installed exchange 2003 SP2 in a single box, the server is configured to be as booth DC and DNS , the DNS is configured as a forwarder to the ISP DNS.
Nslookup work fine, and I can resolve any targret domain.
the problem is appear from time to time, that is any outgoing mails are stucked in the queue and delayed, once the I restart the server, all the messages are sent successfully.
it’s very headech to restart the server everytime having such aproblem.
what about configuring SMTP external DNS, I didnt go for this since my dns working fine.