Perl Webmail is a CGI/mod_perl application that interfaces with external POP3 and SMTP services.

PhpXmail is a web based management software for the Xmail mail server written in php.

IP*Works! - COM library optimized for ASP pages and server-side programming.

@Mail can be used as a Webmail interface to an existing mail server.

Virtual Mail for Postfix helps you to manage virtual pop3/imap domains using Postfix, Courier and PostgreSQL.

IMAP - Courier-IMAP is a fast, scalable, enterprise IMAP server that uses Maildirs.

KMail is the email component of Kontact, the integrated personal information manager of KDE.

Chilkat MIME .NET script allows you to create and manipulate MIME and S/MIME messages.

deepOfix Mail Server is a popular GNU/Linux server operating system.

IP*Works! Secure SNMP - A comprehensive toolkit for building secure SNMP-based agent and manager applications.

PowerSNMP is a family of .NET classes and components used to manage network devices and access remote information.

JMail.NET is a 100% native .NET class library created from scratch in C#.

w3JMail is our full featured SMTP and POP3 component

mpop is a POP3 client: it retrieves mail from POP3 mailboxes.

AspEmail is an active server component for sending e-mail messages using an external SMTP server in an ASP or VB environment.

Fetchmail is a full-featured and robust remote mail retrieval and forwarding utility.

qmailAdmin is a free software package that provides a web interface for managing a qmail system with virtual domains.

Popper is a Web based mail client that allows you to access your personal mailboxes on POP3 servers.

Qpopper is a POP3 server for UNIX operating system.

.NET Email Validation Wizard is a class library for .NET that allows for checking of the syntax of an email address, domain name verification, and even MX record and server verification.

Getmail is a mail retriever designed to allow you to get your mail from one or more mail accounts.

Nameko can retrieve message from a POP3 server, parse e-mails, send email through SMTP server, and more.

Pantomime provides a set of Objective-C classes that model a mail system.

Penguin Greetings (pgreet) engine is a web-based greeting cards for LINUX and other UNIX-based systems written in Perl.

bounce 1.3.5 - Mail-bounce is a general-purpose Perl program for returning E-mail to the sender.