MDaemon Messaging Server Alternatives [Page 6]

A messaging app for teams who see through the Earth!

EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

paid Free Trial $39.95 / One-off

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)

Native email app for email productivity.

Samepage facilitates communication, project management, meetings, online collaboration, and more by combining team chat, video calling, screen sharing, task management, and real-time team document collaboration in a single collaborative workspace.

freemium $7.5 / Monthly

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).

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

Open Source

Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

Open Source

Newton is a fully featured mail client available for Android, iOS, macOS and Windows.

Shift is the ultimate email client for managing Mail, Calendar, Drive, Slack, Asana, Jira, Evernote, and all your other favourite apps

freemium

Open Source Collaboration, providing integration with your existing Linux mailserver, native mobile...

MsgSafe.io provides private, encrypted, online communication with layers of security you can trust.

Mailsite is a multifunctional commercial email management system comprising the email calendar and contact server system.