Encrypted Email
Email is not secure - your messages can be easily intercepted and read. Corporations scan the content of your mail, to build up a profile of you, either to show you targeted ads or to sell onto third-parties. Through the Prism Program, the government also has full access to your emails (if not end-to-end encrypted) - this applies to Gmail, Outlook Mail, Yahoo Mail, GMX, ZoHo, iCloud, AOL and more.
For a more details comparison of email providers, see email-comparison.as93.net
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An open-source, end-to-end encrypted anonymous email service. ProtonMail has a modern easy-to-use and customizable UI, as well as fast, secure native mobile apps. ProtonMail has all the features that you'd expect from a modern email service and is based on simplicity without sacrificing security. It has a free plan or a premium option for using custom domains (starting at $5/month). ProtonMail requires no personally identifiable information for signup, they have a .onion server, for access via Tor, and they accept anonymous payment: BTC and cash (as well as the normal credit card and PayPal).
Not Open Source -
Free and open source email service based in Germany. It has a basic intuitive UI, secure native mobile apps, anonymous signup, and a .onion site. Tuta has a full-featured free plan or a premium subscription for businesses allowing for custom domains ($12/ month). Tuta does not use OpenPGP like most encrypted mail providers, instead they use a standardized, hybrid method consisting of a symmetrical and an asymmetrical algorithm (with 128 bit AES, and 2048 bit RSA). This causes compatibility issues when communicating with contacts using PGP. But it does allow them to encrypt much more of the header data (body, attachments, subject lines, and sender names etc) which PGP mail providers cannot do.
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An open source, privacy-focused, encrypted email service supporting SMTP, IMAP, and API access
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Mailfence supports OpenPGP so that you can manually exchange encryption keys independently from the Mailfence servers, putting you in full control. Mailfence has a simple UI, similar to that of Outlook, and it comes with bundled with calendar, address book, and files. All mail settings are highly customizable, yet still clear and easy to use. Sign up is not anonymous, since your name, and prior email address is required. There is a fully-featured free plan, or you can pay for premium, and use a custom domain ($2.50/ month, or $7.50/ month for 5 domains), where Bitcoin, LiteCoin or credit card is accepted.
Not Open Source -
A Berlin-based, eco-friendly secure mail provider. There is no free plan, the standard service costs €12/year. You can use your own domain, with the option of a catch-all alias. They provide good account security and email encryption, with OpenPGP, as well as encrypted storage. There is no dedicated app, but it works well with any standard mail client with SSL. There's also currently no anonymous payment option.
Not Open Source
Objective of this page
Find the best free, open source, E2E encrypted and private alternative to gmail, outlook, yahoo mail, icloud mail, aol mail, zoho mail, now.
Compare ProtonMail vs Tuta vs Forward Email vs Mailfence vs MailBox.org vs
Discover the best Encrypted Email tools for Android, iPhone, Linux, PC and Chrome to download now. And choose secure, self-hosted, peer-to-peer and independant alternatives in 2024
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Notable Mentions
Word of Warning
- When using an end-to-end encryption technology like OpenPGP, some metadata in the email header will not be encrypted.
- OpenPGP also does not support Forward secrecy, which means if either your or the recipient's private key is ever stolen, all previous messages encrypted with it will be exposed. You should take great care to keep your private keys safe.
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