In about 2 weeks from now, we will be joining about 100 workstations to a new domain. All these workstations currently use Microsoft Online.
Most of these users also have relatively large mailboxes - about 5GB.
When we join these machine to the new domain, Windows XP/Windows 7 will create a new Windows profile. Consequently we will need to recreate the Outlook profile.
Given the amount of data that will need to be synchronized you can imagine this will take days to bring the Outlook data current.
I imagine we are not the first client to deal with this kind of situation. What options to we have in order to ensure Outlook keeps the same OST file so that it does not need to build a new one and synchronize from scratch?
Thanks in advance.