Hi team sorry for this post an try all, and find here my problem with my mobile (iPhone 4s), with my mail zimbra. i configure my iPhone 4s like this Zimbra Mobile Installation and Setup for iPhone - Zimbra :: Wiki but not working :S.. and find my server is mailmex.hildebrando.com but unresponsive , use me iphone 4s with wifi and working very good but use my iphone 4s with 3g and not working and showme website zimbra Zimbra Collaboration Suite Log In but not connect :s... activate my wifi and working, why??? i know not :|... please i am tired helpmeee!!!!