Today I was getting a boatload of undeliverables. I have been aware for sometime that the company that hosts my server has some crappy DNS servers, so I had substituted other more reliable ones in IMAIL'S SMTP setup.   About a week ago I upgraded from 7.12 to 7.13.  So I checked and sure enough the upgrade pulled the default DNS info from my TCP/IP settings on the NIC card and erased my manual entries.  Just an FYI...  I really wish they would warn you before they change something like that.
 
Marc

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