bulk smtp

allows users to send a message with their own SMTP addresses as the From address

allows users to send a message with their own SMTP addresses as the From address

An SMTP and POP3 compliant mail server.

A fast and easy SMTP server for small group of users.

Free E-Mail Client. Supports POP3, IMAP and SMTP. Includes an Attachment Manager

Get professional SMTP/POP3 mail server for corporate or personal needs!

Send mail directly to recipients, bypassing your ISP's SMTP server.

Ruby Email Library for POP3 / SMTP

Python Email Library for POP3 / SMTP

Perl Email Library for POP3 / SMTP