Need fast help! Late yesterday my Exchange 2000 server decided to quit working. I re-booted, solved one of the problems, receiving messages. However I still can't send messages. I nslookup 'ed my domain and realized I had a problem. I checked DNS and everything looked OK, but my MX record was gone. So I created a new MX record and nslookup once again looks good. Still can't deliver, messages in the queue connect to many different domains and they all say the same thing. I saw on another post where someone recommend a Microsoft tool called SMTPDIAG. It tells me the following:
Computer name is MIS-EXCHANGE.
VSI 1 has the following external DNS servers:
Checking SOA for yahoo.com.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.
Checking local domain records.
Checking MX records using TCP: ditron.com.
Checking MX records using UDP: ditron.com.
Both TCP and UDP queries succeeded. Local DNS test passed.
Checking remote domain records.
Checking MX records using TCP: yahoo.com.
Checking MX records using UDP: yahoo.com.
Both TCP and UDP queries succeeded. Remote DNS test passed.
Checking MX servers listed for email@example.com.
Connecting to mx3.mail.yahoo.com [18.104.22.168] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mx3.mail.yahoo.com.
I get the same failure regardless of domain.
Running MS-ISA in front of my domain, but don't seem to have any problems there. Any help ... fast ... would be much appreciated