Yes, I will start this thread. I am comparing the two platforms for a hosted solution. I am curious to hear folks opinions on this. I have done some research on Zimbra and it looks like a solid product. One thing I am failing to find is
a DAG equivalent or clustering option for high availability (both within datacenter and site failover). I am also concerned with integration from 3rd parties (application consistnet snapshots), NOC monitoring tools, backup apps (Avamar agents that are
a database aware), etc.
I think both are good solutions, but my gut feeling is that most Exchange customers that consider sending mail to the cloud, they will be more comfortable with platform they have previously used / worked with. I also think when push comes to shove,
there will be more 3rd party integration available with the MS solution (SharePoint, Cisco telephony apps). Thoughts?