smtp

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

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

Email analyzer SMTP POP3 sniffer

eMail2Pop is an AOL Mail & POP3, SMTP, and Spam Filtering solution.

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

Pop3 Connector to Smtp

Full Featured eMail and groupware server, SMTP, POP3, IMAP, SPF, anti-spam

search emails from SMTP server and send bulk message to valid email addreses

An Email server supporting SMTP and POP3 Protocols for Windows.

AngeliaMail - Command Line SMTP EMail Client For Windows.