Exchange Alternatives

Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online

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)

Business email can be more than just a mailbox. It can be a virtual office where all the team work and online meetings happen. You can create and edit documents there – alone, or in collaboration with your team.

paid $45.0 / Annually (per user)

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Web-based IMAP email client

Open Source

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

Open Source

Borrow top engineers to interview your candidates.

YouTeam is a new, smarter way to outsource.

Experience our best free desktop quality WYSIWYG online word processor and text editor.

free

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

Open Source

Technical screening platform to hire software engineers

Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.

Lotus Notes (also known as IBM Notes) is the email client solution that gives teams access to email, calendar and contact management and seamlessly integrates IBM collaboration tools and IBM domino business application.