Exchange 2007 Migration to 2010 Question

Hello Experts,

I have a question and hoping those who have done this migration previously can help me.

We are doing our switchover to the 2010 server this Saturday.  Our staff last day is this Friday.  I plan on moving their mailboxes after I ensure that connectivity and all is flowing properly to the new 2010.

My question is, majority of the users who are leaving for holiday on Friday have cached accounts and have tablets.  What is going to happen if I do the switch over and I move their mailbox and they are off campus?  What happens to the mobile devices as well?  Will their mail on their tablets stop working until it can sync to the domain, or will they get new certificate warnings when I move our SAN cert to the new server?

Thank you,

Karen
klsphotosAsked:
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Will SzymkowskiConnect With a Mentor Senior Solution ArchitectCommented:
I would only be worried about the ActiveSync portion. I would have a test account setup the same way other accounts are and then move the mailbox to the new Exchange server then test and see what happens. If you are concerned about not being off-site for this test you could always do this from your home using a VPN connection.

You can always tell your users that you may see delays to emails to your phones over the weekend while the migration is happening just so they are aware. In the case that you cannot test this before testing.
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Will SzymkowskiSenior Solution ArchitectCommented:
While you move your mailboxes over to the the new Exchange environment your users should not experience any intrruptions, however for Exchange ActiveSync you might Experience some delays.

I would test this theory with a test mailbox to get accurate results.

Will.
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klsphotosAuthor Commented:
I know, that is what I planned on doing but the issue is the staff leave for holiday on Friday and we are doing this on Saturday and we want to alert staff prior and are not sure what to tell them.  I can't test until after they are gone.
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klsphotosAuthor Commented:
Thank you, that was the concern.  I have test accounts set up but can't test them for behavior until after staff has left with their laptops.  We need to alert them prior to them leaving so they can read it, but not sure what to warn them about since I can't test it until after they leave.

It doesn't sound like it will take them down entirely, just delays.

thank you.
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