Related: How to Easily Find and Verify Email Addresses Other open-source clients exist, but they're riddled with clunky interfaces, sluggish performance, and a lack of advanced features. Thunderbird is available for Windows, Mac, and Linux.Īnd, as sad as it is to say, Thunderbird is the only free and open-source desktop email client that's worth using. It is likely that Thunderbird won't get any new features in the near future, but it is still usable for everyday personal use. In fact, as of this writing, the latest release (version 78.10.2) came out in May 2021. Although Thunderbird development was 'discontinued' in 2012, it still receives maintenance updates, so don't write it off as dead.
