Alternative apps to Mozilla Thunderbird Beta:
  • 4.8
    67 votes
    Mailbird 3.0.10.0
    Mailbird is an email client for Windows, that provides all the right features and tools to help you reach inbox zero faster.
    • Freeware
    • Windows
  • 3.8
    26 votes
    SeaMonkey 2.53.18.2
    Web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple.
    • Freeware
    • Windows, macOS, Linux
  • 4.9
    9 votes
    Claws Mail 4.2.0.2
    Claws Mail is an email client (and news reader), based on GTK+. User friendly, lightweight and fast.
    • Freeware
    • Windows, Linux
  • 4
    17 votes
    Postbox 7.0.60
    Make your email work for you and take control of your day with Postbox's clean and customizable email client.
    • Free to Try
    • Windows, macOS
  • 3.5
    8 votes
    eM Client 9.2.2230
    eM Client is a full featured email client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and even chat.
    • Freeware
    • Windows, macOS
  • 5/5
    3 votes
    Spark 3.0b2 for Mac OS X
    Powerful and easy to use shortcuts manager which allows you to create and organize accessible shortcuts any time.
    • Freeware
    • Windows