smtp preprocessor

Free SMTP Server is a local SMTP server program for Windows

1st SMTP Server - free SMTP relay server.

A SMTP gateway between your mail server and the Internet, catching spam/viruses.

Pivo Smtp fully supports the latest technology for sending Internet email.

.NET assembly for sending emails programmatically using C#, VB.NET, ASP.NET, VB

SMTP, POP3, Mail.

SMTP Bulk Emailer for Windows by Lowrie Associates Ltd

Complete email/SMS solution for a local network, mobile access with POP3/SMTP

Open source AJAX webmail script for existing POP3/IMAP/SMTP server or cPanel

SendEmail is a lightweight, command line SMTP email client.