Microsoft Mail and Calendar Alternatives

Microsoft Mail and Calendar is described as 'Windows 10 has Mail and Calendar apps already built in' and is a Email Client in the office & productivity category. There are more than 50 alternatives to Microsoft Mail and Calendar for a variety of platforms, including Windows, Mac, Linux, iPhone and Android apps. The best Microsoft Mail and Calendar alternative is Thunderbird, which is both free and Open Source. Other great apps like Microsoft Mail and Calendar are Betterbird, Google Calendar, Microsoft Outlook and Fossify Calendar.

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Get a badge for your siteMicrosoft Mail and Calendar alternatives page was last updated Mar 5, 2025

TrulyMail
3 likes
TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.).
60 TrulyMail alternatives
Cost / License
Freemium
Proprietary
Application type
Email Client
Origin
United States
Alerts
Discontinued
Platforms
Windows
United States
+2
Good alternative?Is TrulyMail a good alternative to Microsoft Mail and Calendar?
GyazMail
3 likes
GyazMail is a email client software for Mac OS X, based on Cocoa framework, simple, easy-to-use with many features.
Cost / License
Paid
Proprietary
Application type
Email Client
Origin
Japan
Platforms
Mac
Japan
Good alternative?Is GyazMail a good alternative to Microsoft Mail and Calendar?
GNOME Calendar
7 likes
GNOME Calendar is a simple and beautiful calendar application designed to perfectly fit the GNOME desktop. By reusing the components which the GNOME desktop is build on, Calendar nicely integrates with the GNOME ecosystem.
56 GNOME Calendar alternatives
Cost / License
Free
Open Source (GPL-3.0)
Application type
Calendar
Origin
United States
Platforms
Linux
Linux Mobile
Flathub
GNOME
Flatpak
United States
+5
Good alternative?Is GNOME Calendar a good alternative to Microsoft Mail and Calendar?
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Morgen
Brings together calendars, to-dos, productivity apps, and schedulers in one platform. Integrates with major services like Google Calendar, iCloud, Todoist, and video conferencing tools such as Zoom. Offers native scheduling simil...

https://morgen.so
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EmailTray
3 likes
EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and AOL. EmailTray intelligently ranks messages, prioritizes them into 4 Inboxes and alerts you only to the most important.
Cost / License
Free
Proprietary
Application type
Email Client
Platforms
Windows
Android
+2
Good alternative?Is EmailTray a good alternative to Microsoft Mail and Calendar?
Koma-Mail
4 likes
Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive but, of course, also on your desktop.
67 Koma-Mail alternatives
Cost / License
Free
Proprietary
Application typeApplication types
Email Client
Calendar
Origin
Germany
EU
Alerts
Discontinued
Platforms
Windows
Germany
EU
+7
Good alternative?Is Koma-Mail a good alternative to Microsoft Mail and Calendar?
SlideMail
6 likes
Making email better through artificial intelligence.
Cost / License
Free
Proprietary
Application type
Email Client
Origin
United States
Platforms
iPhone
United States
Good alternative?Is SlideMail a good alternative to Microsoft Mail and Calendar?
Calendarscope
2 likes
Calendarscope is a full-featured calendar software for planning, managing, and scheduling appointments, meetings, birthdays, vacations, special events. It allows you to view all your events in a daily, weekly, monthly, or yearly overview.
123 Calendarscope alternatives
Cost / License
Paid
Proprietary
Application type
Calendar
Origin
Russia
Platforms
Windows
Russia
+7
Good alternative?Is Calendarscope a good alternative to Microsoft Mail and Calendar?
Ymail2
1 like
yMail2 is a standalone email client for Windows (and Linux), available for free since 2003. Now with SSL support included so you can use it with Gmail and Hotmail POP3 and SMTP accounts.
Cost / License
Free
Proprietary
Application type
Email Client
Origin
Australia
Alerts
Discontinued
Platforms
Windows
Linux
Australia
Good alternative?Is Ymail2 a good alternative to Microsoft Mail and Calendar?
Balsa
2 likes
Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you would expect in a robust mail client.
Cost / License
Free
Open Source
Application type
Email Client
Alerts
Discontinued
Platforms
Linux
GNOME
Xfce
Good alternative?Is Balsa a good alternative to Microsoft Mail and Calendar?