Alternatives to Opera Mail for Linux 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.
- The addons extend Thunderbird's functionality making it by far the best email client ever made. zibusisomasuku • May 2017 • 0 agrees and 2 disagrees
Free Open Source Mac Windows Linux BSD PortableApps.com ... Haiku
Support for IMAP Extensible by Plugins/Extensions SMTP integration Built-in RSS reader ... Multiple Account support Add-ons Calendar integration Encryption Extensions Plugins Desktop interface Gui Integrated Web Browser Intuitive Night mode/Dark Theme Protected by Password Support for POP3 Tabs Built-in Calendar Categories Customizable Delivery reports Extensible by Plugins/Extensions Free API Gmail integration Google Calendar integration Import from Google Reader HTML Compose Integrated Chat Integrated Password Manager Legacy addons support Export to OPML Import feeds from OPML Organize mails POP3 Support Portable Secure File Sharing Tabbed interface Support for Themes Add a feature

2046 Like
Mailspring

Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro...

Freemium $ $ $ Mac Windows Linux Arch Linux Fedora ... Ubuntu
Unified inbox Email tracking Multiple Account support Night mode/Dark Theme ... Customizable Night mode/Dark Theme Ad-free Auto update Beauty and fluid interface Built-in themes Linux Notifications Responsive design Sidebar Snooze mail Theme Customization Support for Themes User friendly Drag n drop Electron based Email Analytics Extensible by Plugins/Extensions Support for IMAP Threaded Conversations Add a feature

77 Like
Evolution

Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.

Free Open Source Linux BSD S/MIME GNOME OpenPGP
Calendar integration CalDAV Calendar view CardDAV ... Contacts Exchange Apps that Sync with Google Calendar Support for WebDAV Built-in RSS reader Calendar Encrypted Email Integrated Spam Protection Multiple languages POP3 Support Reminders Add a feature

175 Like
Geary

Geary is an email application built around conversations, for the GNOME 3 desktop.

Free Open Source Linux Chrome OS BSD GNOME
Multiple Account support Gmail integration Support for IMAP Night mode/Dark Theme ... SMTP Add a feature

86 Like
Claws Mail

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration...
- No central inbox or unread box for all mailbox accounts Guest • Oct 2017
Free Open Source Windows Linux BSD
Lightweight Built-in RSS reader Calendar Content Filtering ... Customizable Extensible by Plugins/Extensions Support for IMAP Integrated Email Client Multiple languages Multiple Account support Add a feature

88 Like
Sylpheed

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and...
- No central inbox or unread box for all mailboxes in one place. Guest • Oct 2017
Free Open Source Mac Windows Linux BSD PortableApps.com
Gtk Lightweight POP3 Support Portable Add a feature

58 Like
Trojitá

Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies. Trojitá values vendor-neutrality that IMAP provides...

Free Open Source Windows Linux
IMAP debugging Support for IMAP QT Based Add a feature

14 Like
Pantheon Mail

Pantheon Mail is a free open source email client forked by the elementary OS community from Geary...

Free Open Source Linux elementary OS
Multiple Account support Add a feature

9 Like
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aerc

aerc is an email client that runs in your terminal. It's highly efficient and extensible, perfect for the discerning hacker. FEATURES - Editing emails in an...

Free Open Source Linux
Colored Text Guided configuration Support for IMAP Mnemonic key bindings ... Multiple Account support Terminal-based Command line Command line interface Terminal emulator Add a feature

4 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...
- Discontinued
  The project is no longer developed. Last version, 4.0.8, released in February 2007, can be still downloaded from the official website.
- Central inbox tells which account the email is for. Guest • Oct 2017
Free Open Source Mac Windows Linux
CalDAV Calendar POP3 Support Calendar Sync Add a feature

7 Like

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Opera Mail

Alternatives to Opera Mail for Linux with any license

Thunderbird

Mailspring

Evolution

Geary

Claws Mail

Sylpheed

Trojitá

Pantheon Mail

Know any more alternatives to Opera Mail?

aerc

Mulberry

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