try qmail. i switched from webis mail 2 after it failed a couple of times and took my mail with it =) well, maybe it was just bad luck and webis is a great piece of pocketware, yet i use qmail now because
= it's free
= it's highly customizable
= it provides just about every feature a pocketpc user might want from a mail client (including ssl to read mail at gmail.com)
= there is a desctop pc version of qmail (well, not sure it's that much of an advantage for most of us here)
= i use it for over two months now -- it never failed
= despite it's freeware the author was prompt to reply to my question when i had one!
it has a couple minor drawbacks that i can tolerate ok:
- setup is a little bit more complicated then for webis (but you only have to do it once usually)
- interface is far less polished compared to webis (but it is far more customizable then that of webis mail to adapt to your needs)
well, just give it a try -- i do recommend it:
http://pocketpcfreeware.com/en/index.php?soft=1344