KBiff is a mail notification utility for the KDE project.
Features:

	o Pure GUI Configuration
	o Session Management
	o Panel Docking
	o Animated Gifs
	o Sounds
	o Supported mailbox formats: mbox, maildir, mh, POP3(s), IMAP4(s), and NNTP.

WWW: http://www.kbiff.org/