Gokan Atmaca wrote: > I am using Postfix. (Postfix, OpenLdap, Dovecot, Squirrelmail) My goal > is to synchronize contacts and calendars. I have to do ActiveSync for > this. How can I resolve ActiveSync ? Is there an open source solution > ? look at syncevolution. I do not know about activesync though. Activesync was windows outlook AFAIR Also there are different CalDAV/CardDAV solutions