The most popular alternative is Thunderbird, which is both free and Open Source. If that doesn't suit you, our users have ranked 47 alternatives to Icedove so hopefully you can find a suitable replacement. Other interesting Icedove alternatives are K-9 Mail (Free, Open Source), Microsoft Office Outlook (Paid), eM Client (Freemium) and Evolution (Free, Open Source).
- Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface
- Mutt is a small but very powerful text-based mail client for Unix operating systems.
- Airmail is a lightweight and lightning fast mail client for Mac. Feature list:Accounts:- Unified Inbox and folders- Multi Account with editable html signatures.
- KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE.
- Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).
- TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push...
- The Bat! is a secure email client software, built to protect your correspondence against third-parties. .
- Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies.
- Canary is an exciting new email client for Mac that offers a full set of powerful features with one key difference - your emails are not stored on a 3rd party server.