Alternative apps to Postbox:
  • 3.1
    41 votes
    Enjoy safe, fast and easy email, Mozilla-style. The Thunderbird email client includes intelligent spam filters, powerful search and customizable views.
    • Freeware
    • Windows/macOS/Linux
  • 4
    17 votes
    Web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple.
    • Freeware
    • Windows/macOS/Linux
  • 5/5
    2 votes
    All your email in one place.
    • Freeware
    • Windows/macOS
  • 4
    6 votes
    Mailbird is an email client for Windows, that provides all the right features and tools to help you reach inbox zero faster. It has features such as the first Email Speed Reader, Quick Compose, Productivity Apps and more.
    • Freeware
    • Windows
  • 5/5
    4 votes
    Internet Mail is the software specifically designed for the Internet e-mail.
    • Shareware
    • Windows
  • 4.9
    9 votes
    Opera Mail is a lightweight, customizable mail client. Reading, labeling, and filtering messages has never been so easy.
    • Freeware
    • Windows/macOS
  • 4.4/5
    5 votes
    Manage multiple email accounts, calendars, and your contacts, even when you're offline.
    • Freeware
    • Windows