NaSMail

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

17 Alternatives To NaSMail

BulkMTA

BulkMTA is Commercial Mail Server Similar to PowerMTA.
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Courier-MTA

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

GyazMail

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

Mailbird

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

Mailpile

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

Microsoft SMTP Server

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

NikaMail

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

OpenSMTPD

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

The Power Email App for busy professionals, like you.

PowerMTA

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

Roundcube

Web-based IMAP email client

SOGo

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

Squirrelmail

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

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

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

iRedMail

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

phlyMail

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