StartMail
Ad · 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…
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Best Outlook Alternatives in 2026
10 private alternatives, vetted against our public criteria.
Outlook ties your mail to Microsoft’s ad and telemetry ecosystem. These encrypted providers work with any IMAP client.
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…
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Tutanota
Tutanota: Free, Cross-Platform and Zero-Knowledge Calendar
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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…
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Disroot
Free plans support custom domains. Users can choose between their web client or third party desktop clients like Thunderbird. Disroot allows for encrypted emails to be sent…
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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.
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Desktop - Thunderbird
Mozilla Thunderbird is a email client, personal information manager, news client, RSS and chat client.
Win Mac Linux
Browser - Mailvelope
Bring email encryption straight into your Browser. We recommend using Firefox for this. It can be used to encrypt and sign electronic messages, including attached files,…
Firefox Chrome Edge
Android and iOS - Canary Mail
Canary's security suite is second to none with Seamless End-To-End Encryption, Full PGP Support, Biometric App Lock, On-Device Fetch, No Ads, No Data Mining & Open Source Mail…
iOS Android Mac
Android - K-9 Mail
K-9 Mail is an open source email client focused on making it easy to chew through large volumes of email. Designed for both novice and power users and offers lots of features…
Android