tkbiff allows arbitrary commands to be executed upon mail reception. If you like programs such as xbiff and xbiff++ but wish they were more flexible, then you'll like tkbiff. Unlike other biffs, tkbiff is fully customizable. tkbiff also doesn't waste your valuable screen space with icons; instead, it shows you the mail itself. It supports UNIX, Mac, and Windows, IMAP, POP, and UNIX-style mail files, and SSL and APOP.
The PortalSys Addressbook is designed for clients who use Outlook on the desktop but use Linux as the mail system. It allows you to easily integrate Outlook with your Linux system's addresses. The system is made up of two parts: an Outlook service for your Win32 clients and a server-side application to generate and update your addressbook as often as you like.
Harm acts as a four-way socket redirector that allows you to effectively make a TCP connection from the Internet to a host behind a Linux masquerade-style firewall. The server (behind the firewall) makes connections to the client (on the Internet). After a successful connection, it will bounce packets from a telnet client (Windows and Linux) to the Harm client, to the Harm server (Linux only), or to the telnet daemon behind the firewall.
Irma is a CGI program used to retrieve the information from an HTML form, send confirmation email, and keep track of the data posted. Irma can be used remotely, can automate mandating fields (required information), prompt for confirmation as an intermediate step, and send electronic mail to a list of receivers, including dynamically-generated names with posted data mapped in email contents, subject and other fields. It can provide the highest level of customization through an expressions machanism at all levels of content generation, and can keep track of posted data in a server-side file of any desired format. It has a central administration and full control over remote processing for no security compromise, can chain multiple forms and inherit variables and data from previous ones, and it allows customized levels of errors and messages.