One of our branch offices exists as a separate Exchange org/ AD forest. Exchange wise, they are running Exchange 2003 and we are looking to move to them to Exchange 2010 as part of the company-wide strategy.
The issue is that they heavily utilise Public Folders and we need to migrate that data to Exchange 2010 with the least amount of downtime. They have a seperate PF server named Branch-ExchPF1, and we've built a corresponding Exchange 2010 PF server for them named Branch-ExchPF2.
Does anyone have any experience/ recommendations for carrying this out safely/with the least amount of downtime?