The most popular alternative is Thunderbird, which is both free and Open Source. If that doesn't suit you, our users have ranked 33 alternatives to Mailburn so hopefully you can find a suitable replacement. Other interesting Mailburn alternatives are K-9 Mail (Free, Open Source), Microsoft Office Outlook (Paid), eM Client (Freemium) and Spark (Freemium).
- SponsoredeM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.
- Free email application that’s easy to set up and customize - and it’s loaded with great features!.
- Open source Android email client with support for multi-folder sync, keyboard shortcuts, and more.
- Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
- eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.
- E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.
- There’s big news attached. The best way to manage email on a Mac, according to Apple.
- Mailbird is more than just another email client - It's an all-in-one communication platform for email, contacts, calendar, apps, task management, video meetings and much more. Try it free, today.
- Postbox is an email application that helps you organize your work life and get stuff done.
- Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface