Email Verifier - a unique program that checks email addresses for the validity.

ActiveTracker Email Plugin - Tells you when e-mail you send gets opened, where, how long for, etc. Also adds many new features, like self-destruction, print blocking, live e-mail tracking, self-updating return receipts, and certified e-mail. Works with all SMTP e-mail programs including Outlook Express, Outlook, Eudora, Incredimail, Netscape, etc.