Alternatives to Claws Mail for all platforms with any license

Thunderbird

Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

Free Open Source Mac Windows Linux BSD PortableApps.com ... Haiku
Extensible by Plugins/Extensions Extensible by Plugins/Extensions Built-in RSS reader Calendar integration ... Customizable Extensible by Plugins/Extensions Free API Import from Google Reader Integrated Chat Integrated Web Browser Multiple Account support Export to OPML Import feeds from OPML POP3 Support Portable Tabbed interface Add a feature

1750 Like
Feedly

Feedly is a better way to organize, read and share the content of your favorite sites. It weaves the content from the RSS feeds of your favorite websites into a fun...

Freemium $ $ $ Web Android iPhone Chrome OS Android Tablet ... iPad Apple Watch Chrome Safari Kindle Fire Firefox
Import from Google Reader Custom feeds Export to OPML Save Articles ... Category filters Google Chrome extension Facebook integration Feed your email Firefox extension IFTTT integration Convert images to PDF Social media integration Twitter integration Add a feature

1667 Like
Inbox by Gmail

Built on everything that we've learned from Gmail, Inbox is a fresh start that goes beyond email to help you get back to what matters. Bundles, because some...

Free Web Android iPhone Chrome OS iPad ... Chrome
Sync with Google Calendar Mobile friendly No Exchange/365 Support To-Do management Add a feature

227 Like
K-9 Mail

K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support...

Free Open Source Android Android Tablet
Ad-free Configurability Multiple Account support PGP Encryption ... Privacy focused Add a feature

180 Like
Microsoft Office Outlook

Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

Commercial Mac OS X Windows Web Android iPhone ... Android Tablet Windows Phone iPad Apple Watch Android Wear
Built-in Calendar Dark theme Signature with image Add a feature

309 Like
QuiteRSS

Features: Feed and news filters: new, unread, starred, deleted (for news until restart application) User filters Proxy configuration: automatic or...

Free Open Source Mac OS X Windows Linux BSD PortableApps.com
Colored tags Integrated Search Integrated Web Browser Multiple languages ... Import feeds from OPML Portable Add a feature

137 Like
Evolution

Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list...

Free Open Source Linux BSD S/MIME GNOME OpenPGP
Built-in RSS reader CalDAV Calendar integration CardDAV ... Encrypted email Integrated Spam Protection Multiple languages POP3 Support Add a feature

150 Like
eM Client

eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.

Freemium Windows
Calendar integration Automatic Backup Built-in themes Built-in translation ... Combined Inbox Conversation view Dark theme Email preview Encrypted email Support for IMAP Imports email from Live mail POP3 Support Tasks managment Add a feature

179 Like
Apple Mail

There’s big news attached. The best way to manage email on a Mac gets even better with OS X Yosemite.

Free Mac iPhone iPad
CalDAV CardDAV Bundled with macOS Add a feature

207 Like
Reeder

Reeder is an RSS reader and client for multiple services like: Feedly , Feedbin , FeedHQ , http://alternativeto .

Commercial Mac OS X iPhone iPad
Multiple Account support Add a feature

281 Like
Mailbird

Mailbird is more than just another email client - It's an all-in-one communication platform for email, contacts, calendar, apps, task management, video meetings and...

Freemium $ $ $ Windows
Undo send Asana integration Sync Contacts Conversation view ... Dropbox integration Facebook integration GSuite Integration Multiple Account support Slack integration Trello integration Twitter integration Unified inbox Add a feature

269 Like
Geary

Geary is an email application built for GNOME 3. It allows you to read and send email with a simple, modern interface.

Free Open Source Linux BSD GNOME
No features added Add a feature

69 Like
Know any more alternatives to Claws Mail?
Suggest an application to this list
Spark

E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.

Free Mac iPhone iPad Apple Watch
Calendar integration Cloud sync Export to PDF Add a feature

59 Like
Postbox

Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power...

Commercial Mac OS X Windows
Multiple Account support Box.com integration Built-in RSS reader Dropbox integration ... Extensible by Plugins/Extensions Support for IMAP Multiple languages Onedrive integration POP3 Support Tabbed interface Add a feature

129 Like
Opera Mail

Opera Mail powerfully organizes, indexes, and sorts your messages. It has spam filtering (both automated and Bayesian), supports POP3 and IMAP, newsgroups as well as...

Free Mac OS X Windows PortableApps.com
Built-in RSS reader Integrated Spam Protection Message Filtering Portable Add a feature

95 Like
- Discontinued Opera Mail seems to be no longer updated, but you can still download it from: http://www.opera.com/computer/mail

Claws Mail Comments

Meh....

Comment by DanMan

about Claws Mail · May 2015 · Helpful Not helpful Report as spam

Doesn't look good on Windows. You can tell it's made for Linux, really. It has a lot of settings though and seems pretty quick. Couldn't get the GPG stuff working, so I uninstalled it.

Claws Mail

Link to official Claws Mail site

Features

Categories

Tags

Alternatives to Claws Mail for all platforms with any license

Thunderbird

Feedly

Inbox by Gmail

K-9 Mail

Microsoft Office Outlook

QuiteRSS

Evolution

eM Client

Apple Mail

Reeder

Mailbird

Geary

Know any more alternatives to Claws Mail?

Spark

Postbox

Opera Mail

Platforms

Desktop

Mobile

License

Claws Mail Comments

Meh....