Mail for Exchange v. 2.3
Nokia recently released a Mail for Exchange update, making the current version 2.3. According to Eseries.org, there's really only one main feature that has been added:
When trying to synchronize with a server that has an expired certificate, the user is now given the choice of continuing the synchronization. Previously, the scenario resulted in an error and the synchronization was stopped.
One complaint I've been seeing is that there is still no subfolder support included with Mail for Exchange. Lucky for you, there is an alternative!