We are currently using Exchange 2003 and Entourage 2008. We will be
moving mailboxes to exchange 2010 in the near future. If I am
correct, installing Entourage EWS while a mailbox is on Exchange 2003
will cause entourage to stop functioning. However, Entourage (non
EWS) will not work with Exchange 2010 because there is no web dev
functionality. So it sounds like there will be no smooth way to
transition entourage clients to Exchange 2010 on a large scale. Does
anyone else have any advice on how to make this transition for 500+
entourage users?
We recently went through an Exchange Server 2003 to 2007 upgrade, which
made this easier for us because 2007 supports both protocols.
Because you're going from 2003 to 2010, you'll have no choice but to
change clients at the same time you move mailboxes. Keep in mind that
Outlook Web Access (OWA) in 2010 is greatly improved and now works
equally across browsers and platforms. You could move mailboxes and
instruct users to temporarily use OWA while you work to get their
Entourage software updated.
The only other solution would be to temporarily set up a 2007 server,
migrate to that and then to 2010. It would be extra effort on the
backend but less disruption to users. This, in my opinion, would only
spread the pain over a longer time period instead of yanking the bandage
off all at once.
While Entourage 12.x and 13.x (EWS) may look the same on the surface,
they are not using the same schema in their local Databases and,
therefore, data stored there is only compatible with either WebDAV or
EWS, not both. That's why Microsoft has two apps instead of one that can
toggle between the two.
Hope this helps!
--
bill
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