Thunderbird
Open Source
Thunderbird is a open source mail client developed and maintained by Mozilla foundation.
eM Client
Free Personal
eM Client is a Windows based e-mail client for sending and receiving e-mails, managing calendars, contacts, and tasks.
Mailspring
Freemium
Mailspring is a multi-platform email client.
EssentialPIM
Freemium
EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries, e…
Sylpheed
Open Source
Sylpheed is an open-source e-mail client and news client licensed under the GPL.
Zimbra Desktop
Free Personal
Zimbra Desktop is an offline client that lets you manage various email accounts in one desktop tool.
Open365
Open Source
Open365 is an all-in-one productivity suite, based on KDE, Seafile, LibreOffice, Docker, and Jitsi.
VueMinder Calendar
Freemium
VueMinder Calendar is a calendar app for Windows.
Microsoft Mail and Calendar apps help you stay up to date on your email, manage your schedule and stay in touch with people you care about the most.
Mailbird
Freemium
Mailbird is a desktop email client for Windows 7, 8 and 10.
Postbox
Commercial
Postbox is powerful, intuitive, ultra-customizable, speedy task manager.
Claws Mail
Open Source
Claws Mail is a free and open-source, GTK+-based email and news client. It offers easy configuration and an abundance of features.
The Bat
Commercial
The Bat! is an email program for Windows that protects the correspondence and empowers the users to handle large amounts of emails quickly and efficiently.
Mutt
Open Source
Mutt is a text-based email client for Unix-like systems.
Kontact - KMail
Open Source
KMail is the email component of Kontact, the integrated personal information manager from KDE.
Kontact
Open Source
Kontact is a personal information manager and groupware software suite developed by KDE. It supports calendars, contacts, notes, to-do lists, news, and email.
Holiline Reminder
Free
Holiline Reminder is a free software calendar program for Windows.
Foxmail
Free
Foxmail is a freeware e-mail client.
Compare Microsoft Office Outlook with alternatives
Compare Thunderbird and Microsoft Office Outlook and decide which is most suitable for you.
Compare Mailbird and Microsoft Office Outlook and decide which is most suitable for you.
Compare eM Client and Microsoft Office Outlook and decide which is most suitable for you.
Compare Postbox and Microsoft Office Outlook and decide which is most suitable for you.
Compare Mailspring and Microsoft Office Outlook and decide which is most suitable for you.
Compare Claws Mail and Microsoft Office Outlook and decide which is most suitable for you.
Compare EssentialPIM and Microsoft Office Outlook and decide which is most suitable for you.
Compare The Bat and Microsoft Office Outlook and decide which is most suitable for you.
Compare Sylpheed and Microsoft Office Outlook and decide which is most suitable for you.
Compare Mutt and Microsoft Office Outlook and decide which is most suitable for you.
Compare Zimbra Desktop and Microsoft Office Outlook and decide which is most suitable for you.
Compare Kontact - KMail and Microsoft Office Outlook and decide which is most suitable for you.
Compare Open365 and Microsoft Office Outlook and decide which is most suitable for you.
Compare Kontact and Microsoft Office Outlook and decide which is most suitable for you.
Compare VueMinder Calendar and Microsoft Office Outlook and decide which is most suitable for you.
Compare Holiline Reminder and Microsoft Office Outlook and decide which is most suitable for you.
Compare Microsoft Mail and Calendar and Microsoft Office Outlook and decide which is most suitable for you.
Compare Foxmail and Microsoft Office Outlook and decide which is most suitable for you.