Claws Mail

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility ...

Free
Open Source
Windows
Linux
BSD
Xfce

Claws Mail is an email client (and news reader), based on GTK+, featuring

Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability

Links to official Claws Mail sites

Features

Customizable Extensible by Plugins/Extensions Support for IMAP Multiple languages Built in RSS reader Multiple Account support Lightweight Content Filtering

The Best 12 Claws Mail Alternatives

pop3-support filter is active.

1709 Like

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 Windows Linux BSD Mac Haiku

Customizable Extensible by Plugins/Extensions Portable Integrated Chat Built in RSS reader Calendar integration Free API Import from Google Reader Integrated Web Browser Multiple Account support Export to OPML Import feeds from OPML POP3 Support Tabbed interface
177 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

Support for IMAP Calendar integration POP3 Support Dark theme Encrypted email Conversation view Automatic Backup Built in themes Built in translation Combined Inbox Email preview Imports email from Live mail Tasks managment
146 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 management functions.

Free Open Source Linux BSD S/MIME GNOME OpenPGP

Integrated Spam Protection Multiple languages Built in RSS reader Calendar integration POP3 Support Encrypted email CalDAV CardDAV
128 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 and flexibility to manage even the most demanding workloads.

Commercial Mac OS X Windows

Extensible by Plugins/Extensions Support for IMAP Multiple languages Built in RSS reader Multiple Account support POP3 Support Tabbed interface Onedrive integration Dropbox integration Box.com integration
49 Like

Mutt

Mutt is a small but very powerful text-based mail client for Unix operating systems.

Free Open Source Mac OS X Windows Linux Xfce

Support for IMAP POP3 Support Command line interface S/MIME support
46 Like

The Bat

The Bat! is a secure email client software, built to protect your correspondence against third-parties. .

Commercial Windows S/MIME OpenPGP

Portable Support for IMAP Built in RSS reader POP3 Support
14 Like

Foxmail

Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.

Free Windows

Portable POP3 Support Mouse gestures
8 Like

nPOPuk

nPOPuk is an ultra-small, but comprehensive, e-mail client that runs on a wide range of Windows-based operating systems

Free Open Source Windows Windows Mobile

Portable POP3 Support
7 Like

Becky! Internet Mail

becky! internet mail is an email client for windows os. becky! internet mail supports pop3, imap and s/mime as well as...

Commercial Windows S/MIME OpenPGP

Portable POP3 Support
5 Like

Mulberry

Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other related information, such as contact information.

Free Open Source Mac OS X Windows Linux

POP3 Support CalDAV
3 Like

EmailTray

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...

Free Windows Android

Support for IMAP POP3 Support
1 Like

InboxZero

Email conversations InboxZero automatically gathers your emails in conversations by contact. You can quickly browse all your emails exchanged with a contact in one...

Free Mac OS X Windows Android iPhone iPad

Portable Multiple Account support POP3 Support

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Claws Mail

Links to official Claws Mail sites

Features

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The Best 12 Claws Mail Alternatives

Thunderbird

eM Client

Evolution

Postbox

Mutt

The Bat

Foxmail

nPOPuk

Becky! Internet Mail

Mulberry

EmailTray

InboxZero

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