bulk smtp

XWall is a spam filter for Exchange and other SMTP servers.

Open source POP3/SMTP mail server with AJAX webmail and multiple domains.

Open source POP3/SMTP mail server with AJAX webmail and multiple domains.

SendEmail is a lightweight, command line SMTP email client.

Mail spam filter (SMTP/POP3), includes award-winning SpamAssassin filter engine

YPOPs! is an application that provides POP3 and SMTP access to Yahoo! Mail.

Vivian Mail - A free mail client for SMTP and POP3-Server.

The MX record finder utility. Usually MX record work as SMTP server.

ArGoSoft Mail Server is full SMTP/POP3/Finger server for all Windows platforms.

In the past I have done several projects related to e-mail (POP3/SMTP/IMAP4)