I am currently having issues with outbound mail. I am getting the error "mail from localhost loops back to myself" in the deferred message queue. I also have the same message in /var/log/zimbra log. I have searched the forums, WIKI, google extensively and found others with this issue but nobody had a solution. I can send mail to local users without a problem, but external mail (hotmail etc...) gets bounced. I have went through the documentation several times but canít seem to find anything. Is there documentation somewhere I am missing? This is a basic install on top of CentOS. Any suggestions would be greatly appreciated.