Columba

Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management...

Free
Open Source
Mac OS X
Windows
Linux
BSD

Columba is an email client written in Java, featuring a userfriendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.

Links to official Columba sites

Features

The Best 6 Columba Alternatives

calendar-integration 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
51 Like

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 OS X iPhone iPad Apple Watch

Calendar integration Export to PDF
20 Like

Astro

Modern email and calendar apps for Mac, iOS, Android, Slack and Alexa, powered by Artificial Intelligence. Astro keeps you focused on what's most important.

Free Android iPhone iPad Mac Slack Amazon Echo (Alexa Voice Service)

Calendar integration Multiple Account support Email tracking Google Calendar integration Snooze reliability
11 Like

Hiri

Fast, good looking email client. Lighter than MS Outlook with some unique and clever features. Works ONLY with Outlook / Exchange.

Commercial

Calendar integration Convert Email to Task

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Columba

Links to official Columba sites

Features

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The Best 6 Columba Alternatives

Thunderbird

eM Client

Evolution

Spark

Astro

Hiri

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