[bcrack]

After spending a few years in a similar situation, and not wanting to maintain my own server, I settled with using runbox.com. It's an economical and privacy-oriented, mail provider which allows (necessary for my needs) using your own domain. They have very quick and excellent support (the few times that I needed it) and also offer a CalDAV/CardDav service. Their web interface is lacking (I believe it is about to be updated) but this is an non-issue for me science I use mutt. I'm not aware of a mobile app (I personally use and suggest the excellent K-9 mail OSS app).

[ar-jan]

+1 for Runbox.

I do wish they had better filtering options.