Thunderbird
Open Source
Thunderbird is a open source mail client developed and maintained by Mozilla foundation.
Reeder
Commercial
Reeder is a feedreader for macOS and iOS.
Postbox
Commercial
Postbox is powerful, intuitive, ultra-customizable, speedy task manager.
Mutt
Open Source
Mutt is a text-based email client for Unix-like systems.
OpenProject
Open Source
OpenProject is a web-based project management system for location-independent team collaboration.
Open365
Open Source
Open365 is an all-in-one productivity suite, based on KDE, Seafile, LibreOffice, Docker, and Jitsi.
MailMate
Commercial
MailMate is an IMAP email client for macOS featuring extensive keyboard control, Markdown integrated email composition, advanced search conditions.
Microsoft Office Outlook
Commercial
Microsoft Outlook is a personal information manager from Microsoft.
Apple Mail
Free
Apple Mail is an email client included with the operating systems macOS, iOS and watchOS by Apple Inc.
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.
Kontact - KMail
Open Source
KMail is the email component of Kontact, the integrated personal information manager from KDE.
Spark
Free
Spark is a fast, smart mail manager app.
Compare Claws Mail with alternatives
Compare Thunderbird and Claws Mail and decide which is most suitable for you.
Compare Microsoft Office Outlook and Claws Mail and decide which is most suitable for you.
Compare Apple Mail and Claws Mail and decide which is most suitable for you.
Compare Sylpheed and Claws Mail and decide which is most suitable for you.
Compare Zimbra Desktop and Claws Mail and decide which is most suitable for you.
Compare OpenProject and Claws Mail and decide which is most suitable for you.
Compare Kontact - KMail and Claws Mail and decide which is most suitable for you.
Compare MailMate and Claws Mail and decide which is most suitable for you.