Mozilla Thunderbird is a email client, personal information manager, news client, RSS and chat client.
Official website thunderbird.net
Our take
Thunderbird is the desktop client to reach for when you want to own your mail locally and add PGP without trusting a webmail box, and it is free and backed by Mozilla. Understand what it is, though: a client, not a provider, so it inherits the privacy of whatever account you point it at and does nothing magic on its own. The interface feels dated and setup takes patience, but for managing several accounts in one place on a real computer, little else is as flexible.
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Desktop - Thunderbird alternatives
StartMail First choice for privacy email accounts. Users can choose between their web client or third party desktop clients like Thunderbird. Unlimited aliases with the StartMail and…
ProtonMail Free and paid plans include all security features, including end-to-end encryption, zero-access encryption, anti-phishing, anti-spam and 2FA. Own Android, iOS Apps and web…
Tuta Tuta: Free, Cross-Platform and Zero-Knowledge Calendar
SimpleLogin Emails are forwarded to your real email address. If you reply to a sender it will use your alias, too. It is designed to be user friendly and available on many platforms. Based…
addy.io addy.io is an open-source email aliasing service that lets you create unlimited aliases forwarding to your real inbox. Available on web, browser extensions for all major browsers, and Android/iOS apps. Self-hostable. Based in the United Kingdom.
mailbox.org Paid plans enable custom domains. Users can choose between their web client or third party desktop clients like Thunderbird. Based in Germany, founded in 2014.