Microsoft Exchange is not available for Mac but there are some alternatives that runs on macOS with similar functionality. The best free Mac alternative is Infomaniak kSuite. It's not free, so if you're looking for a free alternative, you could try Infomaniak kSuite or grommunio. If that doesn't suit you, our users have ranked more than 25 alternatives to Microsoft Exchange and five of them are free and available for Mac so hopefully you can find a suitable replacement. Other interesting free Mac alternatives to Microsoft Exchange are Xeams and Emails.
Suite for secure email, calendaring, file sharing, chat, and online meetings, offering real-time collaboration on docs, GDPR compliance, customizable branding, renewable energy use, advanced user management, and all data hosted in Switzerland.
grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.
As the first open source solution to offer a full-featured OutlookAnywhere (RPC over HTTP) and MAPI/HTTP implementation, grammm is the alternative to proprietary backends for native interoperability with Microsoft Outlook
Sendmail is a general purpose internetwork email routing facility that supports many kinds of transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet.
Xeams is a secure and powerful mail server for that includes a powerful spam filtering engine that eliminates up to 99% of junk email right out of the box. The software offers a flexible approach to email, making it a very user friendly server.
Simple, easy and secure mail server with a convenient and simple interface. Automatic certificate renewal through Let’s encrypt. Redirect, local storage. IMAP and SMTP.
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Great Activesync Support POOR and I mean VERY Poor Calendar that has a mind of It's own, setting events or reminders is a NIGHTMARE