- GMail - either @gmail.com or your own domain
- IMAP not POP3 - plenty of discussion about the benefits of IMAP over POP3
The SPAM stays in the GMail/SPAM folder, which you can check once a week (or whenever you wish to) on your device or your desktop - best way is actually via the GMail webmail.
GMail is free, it just *works*.
IMAP v POP3:
http://mail.google.com/support/bin/a...n&answer=75725
SPAM handing:
http://mail.google.com/support/bin/a...n&answer=78759