I'm no fan of Evolution which I used when it was still the default Ubuntu mail app. It often crashed in the middle of composing a message and I lost my work and also hung and I had to wait for Evolution to unhang itself to keep typing. Yet Evolution still gets all the love because it's a free, open source app.
@Videonauth Thunderbird can do a crappy job of of connecting to MS Exchange. Thanks for the heads up btw. I posted a link to the official Hiri website today which I just edited out because I don't want it to get false pozzed by SmokeDetector.
@Videonauth "the guy" is David Power, the founder of Hiri (pronounced "heary"). He's a rock star programmer. Our rules must seem like they came from another planet to him.