Columba

Columba is an email client written in Java, featuring a user-friendly graphical interface with…

20 Alternatives To Columba

Airmail

Airmail is a lightweight and lightning fast mail client for Mac.
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Balsa

Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you…
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Claws Mail

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

Email client and email notifier in one.
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Evolution

Apps/Evolution - GNOME Wiki!

FossaMail

Palemoon’s (Firefox based browser) take on Thunderbird.

Foxmail

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

Kontact - KMail

Email client by KDE, supporting POP3 and IMAP mailboxes.

Mailbird

Mailbird is the best email client for Windows 7, 8 and 10

Microsoft Mail and Calendar

Mail and Calendar apps already built in Windows 10.

Opera Mail

Opera Mail powerfully organizes, indexes, and sorts your messages.
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Outlook

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
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Pegasus Mail

Pegasus Mail has been in existence longer than any other PC email client.
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Postbox

The Power Email App for busy professionals, like you.
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Spark

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

Sylpheed

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).

The Bat

The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.
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TrulyMail

TrulyMail is a multiple email management program for those users who have to frequently sign in to multiple email accounts.
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eM Client

eM Client is a Windows-based email client for sending and receiving emails, and managing calendars, contacts and tasks.
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nPOPuk

nPOPuk is an ultra-small, but comprehensive, e-mail client that runs on a wide range of…