Thunderbird

Free email client with calendar and contacts

Official website Open Source MPL-2.0 Publisher: Mozilla WindowsmacOSAndroidLinux

Thunderbird manages multiple email accounts in one place, with a unified inbox, powerful search, filters, tags, a built-in calendar, tasks, contacts and end-to-end encryption with OpenPGP.

It is made by Mozilla's Thunderbird team and is a free alternative to Microsoft Outlook.

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Direct links to the files published by the developers.

Windows

macOS

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