For some reason it appears as though I am not receiving all my mail.
I have mail forwarded from an outside server to our inside zimbra server. I have used it like this since version 5.x After installing 7.1.1 on my ubuntu 10.4 server we are seeing mail just vanish. I turned of spam filtering to see if that was the issue.
One thing I see is, I have a local account on the server, that is I log on with my username, so if I send mail to the mail will go sometimes to my local (system account not zimbra) or to zimbra, users that do not, which is everyone else, the mail bounces back stating:
mail for loops back to myself)