NaSMail

NaSMail is a standards-based webmail package written in PHP.

BulkMTA

BulkMTA is Commercial Mail Server Similar to PowerMTA.

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open…

GyazMail is an advanced level of an email account management system for the Mac OS X operating system users.

Mailbird is the best email client for Windows 7, 8 and 10

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site.

NikaMail is a portable, extendable, zero-config email server.

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with…

The Power Email App for busy professionals, like you.

PowerMTA is an industrial-strength software for high-volume email delivery.

Web-based IMAP email client

SOGo is groupware server with a focus on scalability and open standards.

SquirrelMail is a standards-based webmail package written in PHP.

Zoho Mail is a webmail service built with the needs of a modern business in mind.

eM Client is a Windows-based email client for sending and receiving emails, and managing calendars, contacts and tasks.

A fully fledged, free email server solution, an open source project (GPL v2).

phlyMail is an advanced webmail and groupware solution featuring unlimited profiles, multiple…