I'm having the same issue with some domains generating an unrouteable address error since upgrade to version 11.
The email addresses themselves are perfectly valid, and I have checked resolv.conf. In fact, if I run exim -bt [email protected]
, it finds the mail server fine.
The mailer daemon message takes the following form:
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
Strangely, the mailer daemon, back to the sender just sits in the queue. When you try to send it from the queue, the following message is shown:
Message 1HwZbc-00081W-L6 is no longer frozen
** [email protected]: Unrouteable address
Frozen (delivery error message)
Why the local sender's address should also be causing problems is beyond me.
I have made sure eximmailtrap is disabled and allowing "nobody" to send mail.
The error message in exim_mainlog is as follows:
2007-06-15 13:47:46 1HzBCp-00022f-Mo == [email protected] R=lookuphost T=remote_smtp defer (111): Connection refused
2007-06-15 13:55:19 1HzBCp-00022f-Mo ** [email protected]: Unrouteable address
Any help appreciated!