Want to start of by saying i am new to zimbra so if this is a dumb question i apologize.
we are having speed issues with our zimbra server. Attachments are taking an extremely long time to download and often times our users who are using outlook get an error message saying that An operation on the server timed out. The server may be down, overloaded, or there may be too much net traffic.
however, on our iphones we receive email with little delay.
I am running version 6.0.0 on an ubuntu 64bit server