I've had my n900 2 months now... I'm on the latest update and at no point have I had issues with e-mail! I sync my personal account, my hotmail account and my work exchange account (2007 I suspect this is). Setup was easy, at no point have I had any major issues, the issues have experienced have been serverside I believe. Pull e-mail on the n900 - does exactly what it says on the can!

Thanks vitaly_repin