PEN is an easy to use, easy to setup Email Notifier that sits in your SysTray and pops up a small non-intrusive window and/or play a sound whenever new email arrives in your mailbox. You can choose between different pop-up styles or create your own. PEN supports an unlimited amount of POP3 (even over SSL) as well as IMAP, AOL, Excite, Gmail, Hotmail, Netscape, Lycos, Mail.com, MSN & Yahoo webbased mailboxes. You can preview subjects or preview the mail itself. Unwanted email can be deleted immediately, without having to start your email program. PEN also checks for updates automatically and notifies the user if a new version is available. Simple Junk-mail detection is also available.