Microsoft Exchange is a popular email and calendaring server solution by Microsoft.
Starting from $4 per user/month
Best IceWarp Alternatives ranked by AI · updated May 2025
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IceWarp is a comprehensive email collaboration platform that offers email, messaging, and collaboration solutions for businesses of all sizes.
Price: Varies based on the number of users and features selected
🎯 icewarp.com
Top 6 IceWarp alternatives
Zimbra is an enterprise-class email, calendar, and collaboration solution built for the cloud, both public and private.
Starting at $6 per mailbox per year
Kerio Connect is a secure and reliable email and messaging solution for small to mid-sized businesses.
Starting from $4.40/user/month
ProtonMail is an end-to-end encrypted email service based in Switzerland.
Free tier available, premium plans starting at $5/month
Google Workspace is a suite of cloud computing, productivity and collaboration tools, software and products developed by Google.
Starting from $6/user/month
iRedMail is a full-featured mail server solution that supports email services like SMTP, IMAP, POP3, and webmail.
Free and Paid versions available
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