Microsoft Exchange AlternativesTop Mail Servers and other similar apps like Microsoft Exchange

Microsoft Exchange is described as 'Exchange business-class email helps increase user productivity while protecting your data. Get it as a hosted service or run it on your servers' and is a Mail Server in the social & communications category. There are more than 25 alternatives to Microsoft Exchange for a variety of platforms, including Linux, Web-based, Windows, Self-Hosted and Mac apps. The best Microsoft Exchange alternative is Google Workspace. It's not free, so if you're looking for a free alternative, you could try hMail Server or Kolab Community. Other great apps like Microsoft Exchange are Kopano, mailcow: dockerized, Zimbra Collaboration Suite and grommunio.

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Microsoft Exchange alternatives are mainly Mail Servers but may also be WebMail Providers or Calendar Apps.  Other popular filters includes Linux + Free. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Microsoft Exchange.
Microsoft Exchange iconMicrosoft Exchange
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Exchange business-class email helps increase user productivity while protecting your data. Get it as a hosted service or run it on your servers.

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Microsoft Exchange alternatives page was last updated Oct 16, 2024
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  1. Google Workspace icon
    Google Workspace icon

    Google Workspace

     139 likes
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    Google Workspace delivers a cloud-based suite combining Gmail, Calendar, Meet & Drive to enhance collaboration through tools like Docs and Sheets. Offers secure storage options, custom domain emails, and robust management capabilities with 2FA and 24/7 support.

    52 Google Workspace alternatives
    Google Workspace screenshot 1

    License model

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Chrome OS
    Google Workspace screenshot 1
    Google Workspace screenshot 2
    +9
    Google Workspace screenshot 3

    Google Workspace Features

    1. Google Calendar icon  Sync with Google Calendar
    2.  Two-factor Authentication
    3.  Online collaboration
    4. Google Contacts icon  Google contacts integration
    5.  Sync with Google Drive
    6. Google Sheets icon  Google Sheets integration
    7.  AI-Powered
    8.  Built-in AI Assistant
    9.  Integrated Bulk Emailing
    Google Workspace iconMicrosoft Exchange Icon

    Google Workspace VS Microsoft Exchange

    Is Google Workspace a good alternative to Microsoft Exchange?
     

    • Some users think Google Workspace is a great Microsoft Exchange alternative, some don't.

    • Google Workspace is the most popular Web-based, Windows, Mac & Linux alternative to Microsoft Exchange.

    • Google Workspace is the most popular commercial alternative to Microsoft Exchange.

    • Google Workspace is Paid and ProprietaryMicrosoft Exchange is also Paid and Proprietary
  2. hMail Server icon
    hMail Server icon

    hMail Server

     28 likes
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    hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.

    23 hMail Server alternatives
    hMail Server screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Windows

    hMail Server Features

    1.  IMAP Support
    2.  POP3 Support
    3.  SMTP Support
    4.  Convert images to PDF
    hMail Server screenshot 1
    Discontinued

    hMail Server is no longer supported by the people who created it and has been discontinued – so use it at your own risk.

    hMail Server iconMicrosoft Exchange Icon

    hMail Server VS Microsoft Exchange

    Is hMail Server a good alternative to Microsoft Exchange?
     

    • Almost everyone thinks hMail Server is a great Microsoft Exchange alternative.

    • hMail Server is the most popular Open Source & free alternative to Microsoft Exchange.

    • hMail Server is Free and Open SourceMicrosoft Exchange is Paid and Proprietary
  4. Kopano icon
    Kopano icon

    Kopano

     31 likes
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    Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.

    22 Kopano alternatives
    Kopano screenshot 1

    License model

    Application types

    Platforms

    • Online
    • Software as a Service (SaaS)
    Kopano screenshot 1

    Kopano Features

    1.  Real time collaboration
    2.  On-premises software
    3.  Shared Calendar
    4.  CalDAV Support
    5.  IMAP Support
    6.  S/MIME Support
    7.  POP3 Support
    Kopano iconMicrosoft Exchange Icon

    Kopano VS Microsoft Exchange

    Is Kopano a good alternative to Microsoft Exchange?
     
    Comments about Kopano as an Alternative to Microsoft Exchange
     
       
    Karunamon

    Free and open source, and has most of the things you want from Exchange, including shared calendars.

    Top positive comment •Jul 5, 2022
    0
    marcski

    Stable and cheap backend, flexible frontend support, open source, in full control of your data

    Positive comment •Feb 1, 2017
    0
    bobsp

    Scalable, open source with a great UX and it has all the features I need

    Positive comment •Feb 1, 2017
    0
    Show more comments
    3 of 6 comments
    Microsoft Exchange Icon
    Kopano icon

    • Almost everyone thinks Kopano is a great Microsoft Exchange alternative.

    • Kopano is the most popular SaaS alternative to Microsoft Exchange.

    • Kopano is Paid and ProprietaryMicrosoft Exchange is also Paid and Proprietary
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    Infomaniak kSuite icon

    Infomaniak kSuite

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  6. Kolab Community icon
    Kolab Community icon

    Kolab Community

     41 likes
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    Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.

    47 Kolab Community alternatives

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Linux
    • Online
    • Self-Hosted

    Kolab Community Features

    1.  Real time collaboration
    2.  Video Conferencing
    3.  Contacts
    4.  Voice Chat
    5.  CardDAV Support
    6.  IMAP Support
    7.  CalDAV Support
    8.  WebDAV Support
    Kolab Community iconMicrosoft Exchange Icon

    Kolab Community VS Microsoft Exchange

    Is Kolab Community a good alternative to Microsoft Exchange?
     

    • Most users think Kolab Community is a great Microsoft Exchange alternative.

    • Kolab Community is the most popular Self-Hosted alternative to Microsoft Exchange.

    • Kolab Community is Freemium and Open SourceMicrosoft Exchange is Paid and Proprietary
  7. mailcow: dockerized icon
    mailcow: dockerized icon

    mailcow: dockerized

     41 likes
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    mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration.

    22 mailcow: dockerized alternatives
    mailcow: dockerized screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Linux
    • Self-Hosted
    mailcow: dockerized screenshot 1
    mailcow: dockerized screenshot 2
    +3
    mailcow: dockerized screenshot 3

    Top mailcow: dockerized Features

    1.  Mail Server
    2.  Self hosted mail
    3. Docker icon  Support for Docker
    4.  ActiveSync
    5.  Dark Mode
    6.  Ad-free
    7.  Two-factor Authentication
    8.  Mail Filtering
    9.  Email Organizer
    10.  Spam Filter
    11.  Support for Aliases
    12.  Modular System
    mailcow: dockerized iconMicrosoft Exchange Icon

    mailcow: dockerized VS Microsoft Exchange

    Is mailcow: dockerized a good alternative to Microsoft Exchange?
     
  8. Zimbra Collaboration Suite icon
    Zimbra Collaboration Suite icon

    Zimbra Collaboration Suite

     35 likes
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    Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.

    44 Zimbra Collaboration Suite alternatives
    Zimbra Collaboration Suite screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Linux
    • Online
    • Self-Hosted

    Zimbra Collaboration Suite Features

    1.  Real time collaboration
    2.  ActiveSync
    3. Microsoft Active Directory icon  Active Directory integration
    Zimbra Collaboration Suite iconMicrosoft Exchange Icon

    Zimbra Collaboration Suite VS Microsoft Exchange

    Is this a good alternative to Microsoft Exchange?
     
  10. grommunio icon
    grommunio icon

    grommunio

     3 likes
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    grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.

    12 grommunio alternatives
    grommunio screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    grommunio screenshot 1
    grommunio screenshot 2

    Properties

    1.  Privacy focused

    Features

    1.  Real time collaboration
    2.  Contacts
    3.  Self hosted mail
    4.  RPC
    5.  Ad-free
    6.  Dark Mode
    7.  Spam Filter
    8. Docker icon  Support for Docker
    9.  CardDAV Support
    10.  IMAP Support
    11.  CalDAV Support
    12.  POP3 Support
    grommunio iconMicrosoft Exchange Icon

    grommunio VS Microsoft Exchange

    Is grommunio a good alternative to Microsoft Exchange?
     
    Comments about grommunio as an Alternative to Microsoft Exchange
     
    Guest

    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

    Positive comment •Oct 16, 2024
    0
    norbertlambing

    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

    Positive comment •Jun 17, 2021
    2
    Microsoft Exchange Icon
    grommunio icon

    • Almost everyone thinks grommunio is a great Microsoft Exchange alternative.

    • grommunio is the most popular Android, iPhone & iPad alternative to Microsoft Exchange.

    • grommunio is Freemium and Open SourceMicrosoft Exchange is Paid and Proprietary
    • grommunio is Privacy focusedMicrosoft Exchange is not according to our users
  11. Zentyal icon
    Zentyal icon

    Zentyal

     54 likes
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    Zentyal is a native Microsoft Active Directory implementation on Linux incorporating all the network services required in a small and medium business environment: Directory & Domain Server, Mail Server, Gateway and Infrastructure Server.

    26 Zentyal alternatives
    Dashboard

    License model

    Application types

    Platforms

    • Linux

    Zentyal Features

    1.  Gateway
    2.  Member Directory
    3.  Web interface
    User and Device Management
    Firewall
    +1
    Installation
    Zentyal iconMicrosoft Exchange Icon

    Zentyal VS Microsoft Exchange

    Is Zentyal a good alternative to Microsoft Exchange?
     
    Comments about Zentyal as an Alternative to Microsoft Exchange
     
       
    Guest

    No Exchange alternative and no support for MS Outlook Client

    Negative comment •Mar 5, 2018
    7
    Guest

    Not an Exchange alternative at all. Does basic AD but that is about it. It is more of a gateway server.

    Negative comment •Sep 2, 2019
    0
    Guest

    While the comments below suggest that this is AD, not exchange replacement. It was supposed to ship with SoGo / openchange as a managed add-on. You also strangely enough can't have exchange without AD. but guests do keep on posting. Exchange is just an Add-On to AD. (It extends the schema).

    Positive comment •Aug 7, 2020
    -2
    Show more comments
    3 of 4 comments
    Microsoft Exchange Icon
    Zentyal icon

    • Some users think Zentyal is a great Microsoft Exchange alternative, some don't.

    • Zentyal is Paid and Open SourceMicrosoft Exchange is Paid and Proprietary
  12. Kolab Now icon
    Kolab Now icon

    Kolab Now

     42 likes
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    Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

    79 Kolab Now alternatives
    Kolab Now email

    License model

    Application types

    Platforms

    • Online
    • Software as a Service (SaaS)
    • DAVx5
    Kolab Now calendar
    Kolab Now contacts

    Properties

    1.  Privacy focused

    Features

    1.  Support for Aliases
    2.  Real time collaboration
    3.  End-to-End Encryption
    4.  CalDAV Support
    5.  WebDAV Sync
    6.  CardDAV Support
    Kolab Now iconMicrosoft Exchange Icon

    Kolab Now VS Microsoft Exchange

    Is Kolab Now a good alternative to Microsoft Exchange?
     
    Comments about Kolab Now as an Alternative to Microsoft Exchange
     
    Guest

    With Microsoft no longer supporting our existing setup, this was a great alternative.

    Positive comment •Sep 4, 2015
    2
    Microsoft Exchange Icon
    Kolab Now icon

    • Some users think Kolab Now is a great Microsoft Exchange alternative, some don't.

    • Kolab Now is Paid and Open SourceMicrosoft Exchange is Paid and Proprietary
    • Kolab Now is Privacy focusedMicrosoft Exchange is not according to our users
  13. Infomaniak kSuite icon
    Infomaniak kSuite icon

    Infomaniak kSuite

     4 likes
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    The ethical collaborative solution. Increase your productivity with a 100% Swiss solution that brings together all the apps for teamwork.

    77 Infomaniak kSuite alternatives
    Infomaniak kSuite screenshot 1
    Infomaniak kSuite screenshot 2
    +5
    Infomaniak kSuite screenshot 3

    License model

    • Free Personal • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Cloud Sync
    2.  Real time collaboration
    3.  Calendar View
    4.  Works Offline
    5.  No Tracking
    6.  Ad-free
    7.  End-to-End Encryption
    Infomaniak kSuite iconMicrosoft Exchange Icon

    Infomaniak kSuite VS Microsoft Exchange

    Is Infomaniak kSuite a good alternative to Microsoft Exchange?
     
10 of 43 Microsoft Exchange alternatives