Hi,

I have a Linux Mail server running Exim, with 1000 users.

The higher ups want the firm to migrate to Exchange 2013.

From what I've seen on the Exchange Server, there is no in-built migration tool, and online sources are rather scanty on any successful migration from Exim to Exchange. 

Any ideas on how to do this, without resorting to manually importing individual PSTs?

Thanks.

If the exim mailboxes are reachable by the Internet and via a standard protocol, then a cloud service might be just the answer.  MigrationWiz is one such solution.

https://www.migrationwiz.com/

Hi Ed,

I had hoped to find a solution where I could just do the migration from the Exim boxes to Exchange Server, since they're currently all on the same network.

Personally, I wanted to move to Exchange 2010 and wait until Exchange 2013 has had enough of a shake-down from users worldwide before recommending it to the higher ups.

Any other ideas?