This is OT for this list but am hoping someone could provide me some input.
We have been having problems sending to one domain that we do not host. After investigating it, here is what I have found. The domain "ipapilot.org" has 2 MX records. Sometimes, our DNS server wants to use their 2 MX record even though that domain has properly configured priority numbers and their primary server is active. The problem when it does resolve to their 2 MX record, is that server does not except email. So then the message gets requeued and still tries to deliver to the 2nd MX until finally the number tries have been reached in iMail and the email returns to sender. We have, after talking to ipapilot.org to them about (why they have 2nd email server that doesn't accept any mail); proves useless. To me, it appears they are using that 2 MX as a greylist server as the response from it is always: 451 Try Again. Our caching in Imail has been turned off for years. So the problem may be in our DNS Server (Simple DNS Plus) where it's not retrying to get the MX record again; but rather using it's cache. Sometimes our DNS does pull the primary MX, other times the 2 MX. Is this a problem with our DNS? Or does DNS pull any MX it finds (no matter the priority?) Thanks, Erik --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.