MHonArc is a Perl mail-to-HTML converter. MHonArc provides HTML mail archiving with index, mail thread linking, etc; plus other capabilities including support for MIME and powerful user customization features.
This script allows you to send emails from any computer with up to 10 attachments. Unlike most attachment emailing scripts, you do not need complex libraries to be install, everything is self contained. It uses Sendmail so virtually every *nix server will be able to run this script.
MAILQ-TIP is a perl script that uses the mailq command that comes as part of Sendmail and generates a pair of HTML report pages from the resultant information. It will also send a summary to the local screen as it does this.
Quick-e-mail allows you to easily and quickly send preset messages to one or multiple e-mail addresses. This can save you time for those messages you seem to send every day to different people. For example, you could use it to send an e-mail asking for a link exchange. Instead of typing out your message every time, all you do is copy and paste the other webmaster's e-mail, and Quick-e-mail will send that link exchange request to them.
A daemon that provides a method to track generic POP3 or IMAP logins and then email (in future:also block) the user if they exceed the number of accesses per given minutes allowed.