iMail Alternatives [Page 5]

EGroupware is free open source groupware software intended for businesses from small to enterprises.

Mailu is a simple yet full-featured mail server as a set of Docker images.

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

Private email server with collaboration tools, ensures Data Portability and helps you comply with the GDPR in a cost-efficient way. Start Free trial now.

ArgoSoft Mail Server is a best in the class webmail server that is basically the suit of multiple servers, FTP server and various other forms of servers that allow the users to manage all of their servers.

Simple, easy and secure mail server with a convenient and simple interface.

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

Open Source

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases.

Increase security, evolve your datacenter, and innovate faster with Microsoft Windows Server, the cloud-ready operating system.

A software package designed to solve computationally hard problems in algebra, number theory, geometry and combinatorics.

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

Open Source