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Calendar updates randomly

Posted: Wed May 30, 2012 2:22 pm
by 4610silbro
Good evening
I'm having a Problem with my Zimbra Server 7.2.0 running on Ubuntu 10.04 LTS 64 bit.
My mobile phone downloads the calendar, email, contacts. When I make a calendar entry with my mobile it takes forever to sync. Very random it seems (up and down). It works fine with Outlook. I tried my LG P990 android phone and a HTC. Ports are open (443, 25). What could the issue be? Thanks for any advice :)