Alternative apps to Portable Thunderbird:
  • 67 votes
    Mailbird 3.0.39
    Mailbird is an email client for Windows, that provides all the right features and tools to help you reach inbox zero faster.
    • Freeware
    • Windows
  • 94 votes
    Mozilla Thunderbird 139.0.2
    Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features.
    • Freeware
    • Windows, macOS, Linux
  • 24 votes
    Mozilla Thunderbird 140 Beta 2
    Now with tabs, better search, and email archiving.
    • Freeware
    • Windows, macOS, Linux
  • 36 votes
    IncrediMail 6.6.0
    Make your email incredible.
    • Freeware
    • Windows
  • 8 votes
    The Bat! Home Edition 11.4.2.1
    Popular email client that allows to work with unlimited number of the mailboxes, and many more other features.
    • Freeware
    • Windows
  • 9 votes
    eM Client 10.3.2040.0
    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
  • 12 votes
    Pegasus Mail 4.80
    Free, standards-based electronic mail client suitable for use by single or multiple users on single computers or network.
    • Freeware
    • Windows
  • 8 votes
    Becky! Internet Mail 2.81.08
    Internet Mail is the software specifically designed for the Internet e-mail.
    • Free to Try
    • Windows