Airmail is not available for Windows but there are a few alternatives that runs on Windows with similar functionality. The best Windows Contact Manager alternative is Thunderbird, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 50 alternatives to Airmail, but unfortunately only two of them are Contact Managers available for Windows. If you can't find an alternative you can try to remove all filters.
Cross-platform email client supporting multiple identities, chat, and strong filtering. Extend functionality with add-ons like RSS/Atom feed readers and PGP support.
Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive but, of course, also on your desktop.
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