Has anyone come across a tool or written KiX script that helps with the transition from one Exchange server to another by modifying the Exchange server name in the profile?

I will decommission my Exch5.5 server on Wednesday and am looking for a way to check who has a profile on their computer that still doesn't have the new server name.

Thanks!
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let the wise listen and add to their learning,
and let the discerning get guidance- Proverbs 1:5