unrouteable mail domain “domain.com”

his message was created automatically by mail delivery software.

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:

selim61@xxxxx.com
unrouteable mail domain “xxxxx.com”

—— This is a copy of the message, including all the headers. ——

Çözüm:Update

root@makine# /scripts/exim4 –force