[IMail Forum] "MX fail to connect" in IMail 6.04

[Paul Pritchard]

We recently moved our servers to a new data center.  IMail can receive messages, but now it does not send out messages.  In the SMTP logs, for every outbound message, we see error messages like: Trying delphiplanet.com (0) MX connect fail "66.34.234.34" I tried using the knowledge base, but nothing suggested there seems to help.  DNS appears to be set up correctly (in the errors above, you can see that delphiplanet.com is resolved to its IP address), but I tried using both a single and multiple DNS addresses in the SMTP configuration.  I can also ping outside addresses from the server.  There is no firewall in place. I used the "lookup" utility to view the DNS server information, which appears to be correct. I also tried contacting IMail customer support.  Daniel W. there replied with the following "helpful" message: "An MX connect fail is caused if the mail server connects to another mailservers (MX) Mail eXchanger record and fails if it does in fact fail IMail will move to the next MX in the list".  Obviously no help at all. It's not clear to me exactly what causes the "MX connect fail" messages.  Can anyway give me any additional information about this message and what I can check to determine what is causing this problem?  Is there a way to turn on more verbose messages?   --Paul