I use a procmail recepie and cat a sound when new mail is delivered to my inbox. Sorry, I can't access my e-mail machine now or I would post the receipe.
# Common e-mail tools
sendmail -
postfix - sends mail to local users (and internet when configured correctly)
fetchmail - gets mail from internet accounts (non-Hotmail type)
procmail - sorts and delivers into separate mailboxes
mutt - mail client that sucks less than all the others
Email the Linux Way
Suresh Ramasubramanian's email guide
The Linux Mail User HOWTO
The Linux Electronic Mail Administrator HOWTO
SquirrelMail web mail
Why use Hotmail when there is
LinuxMail?
Gotmail, a utility to download mail from Hotmail type accounts