The Best Thunderbird Alternative for Windows in 2021

The 4 Best Alternatives to Thunderbird Mail

  • Mailbird — a powerful and feature-packed email client
  • eM Client — a simple design and user-friendly interface
  • Postbox — a beautifully designed interface
  • Webmail — any web-based email manager


  1. Layout and UI
  2. Most Popular Features
  3. Cost

1. Layout and User Experience

2. Most Popular Features

  • Messaging apps, like Facebook, Twitter, and WhatsApp.
  • Task management apps and tools, like Todoist,, Evernote, and Asana, can easily be activated in your Mailbird AppStore.
  • Video meeting apps, such as Whereby and Veeting Rooms, allow you to easily jump on a call or virtual meeting, without having to leave your Inbox.
  • Calendar apps, like Google Calendar and Sunrise Calendar, give you a nice overview of your upcoming appointments and enable you to schedule appointments from your Mailbird.

3. Cost

  1. Mailbird Personal Yearly
  2. Mailbird Personal Pay Once
  3. Mailbird Business Yearly
  4. Mailbird Business Pay Once (on request only)

eM Client






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The best Windows app to manage multiple email accounts