[IMail Forum] IMail Returning Messages When Connection Down

[Jeffery Rehm]

Have an IMail server that is returning messages to users when the Internet connection is down with a Unknown Host error.  IMail is set to attempt delivery every 30 minutes for 2 days.  If the connection is up, the messages go through without a problem.   I'm guessing the Unknown Host is a result of it not being able to resolve the receiving domain, but this could be a normal situation if the Internet connection is down.