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 12 Columba Alternatives

multiple-account-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
269 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 much more. Try it free, today.

Freemium Windows

Sync Contacts GSuite Integration Multiple Account support Slack integration Dropbox integration Facebook integration Asana integration Conversation view Trello integration Twitter integration Undo send Unified inbox
165 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, message flagging, IMAP deletes, saving attachments, configurable...

Free Open Source Android Android Tablet

Privacy focused Ad free Multiple Account support PGP Encryption
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
75 Like

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

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

Airmail

Airmail is a lightweight and lightning fast mail client for Mac. Feature list: Accounts: - Unified Inbox and folders - Multi Account with editable html signatures.

Commercial Mac OS X iPhone iPad Apple Watch

Customizable Multiple Account support Lightweight Dropbox integration Fullscreen support
20 Like

Polymail

The most powerful platform for email productivity in a beautiful native app — on desktop and mobile.

Freemium Mac OS X iPhone iPad

Sync Contacts Multiple Account support Email tracking Email scheduling
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
17 Like

TypeApp

TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email...

Free Personal Android iPhone Android Tablet iPad Android Wear Kindle Fire

Multiple Account support Live Push Notifications Unified inbox
11 Like

sup

Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic contact- list management, custom code...

Free Open Source Linux

Multiple Account support Command line interface Console based
3 Like

Koma-Mail

Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive...

Free Windows

Portable Multiple languages Built in RSS reader Multiple Account support POP3 Support Support for Unicode
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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Columba

Links to official Columba sites

Features

Categories

Tags

The Best 12 Columba Alternatives

Thunderbird

Mailbird

K-9 Mail

Postbox

Claws Mail

Airmail

Polymail

Astro

TypeApp

sup

Koma-Mail

InboxZero

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