Best Exchange Alternatives & Competitors in 2024

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

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

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

Open Source

Borrow top engineers to interview your candidates.

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

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

Technical screening platform to hire software engineers

An acquisition marketplace for profitable internet businesses. We make it anonymous & free for owners of $100K+ revenue startups to attract full & partial acquisition offers. Free for acquirers to join for a limited time. No commissions, ever.

freemium $399.0 / Annually (Launch pricing (with limited time discount code))

YouTeam is a new, smarter way to outsource.

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

Open Source

Codocado helps software engineers ace the technical interview.Sign up for our newsletter for free and receive daily curated technical interview questions from real FAANG software engineers.

Linux directory, domain, mail, gateway and infrastructure server for SMBs.