If you're switching to encrypted email, start and likely end here. Proton Mail is the rare privacy tool that doesn't make you sacrifice usability, it's as fast and fluid as Gmail while keeping your data genuinely private.
What holds up
End-to-end encryption with public-key cryptography, not just in-transit TLS
Swiss jurisdiction with strong privacy laws and annual third-party audits
Generous free plan includes encrypted calendar; paid tiers bundle VPN and password manager
Local AI writing assistant option, no data sent to remote servers
Tracker blocking on images and link confirmation before opening URLs
What to know
Mobile app lacks mailing list unsubscribe tools available on web/desktop
True end-to-end encryption is clunky when emailing non-Proton users
Free plan limits you to 3 folders and 3 labels
IMAP/SMTP bridge for external clients requires a paid plan
Expert verdict
I never intended to switch away from Gmail... But I went ahead and set up an account with Proton Mail anyway, and I haven't opened Gmail since.
Proton Mail uses end-to-end encryption with public-key cryptography... End-to-end encryption means that your message is fully encrypted from the source (you) to the destination (the recipient).
Tutanota is the pick for people who want maximum encryption coverage without paying. It encrypts more of your email than Proton does by default, including subject lines, making it the harder target for surveillance.
What holds up
Encrypts subject lines and metadata in addition to message bodies
Open-source and independently audited
Generous free tier with 1GB storage
Based in Germany under strict EU GDPR privacy laws
No ads, no tracking, no data mining
What to know
Smaller ecosystem than Proton, no bundled VPN or password manager
No IMAP/SMTP support, so can't use with third-party email clients
Search functionality is limited compared to Gmail or Proton
Fewer integrations and less polished UI than Proton Mail
Expert verdict
Tutanota encrypts the subject line and body of emails, not just the body like some other services.
Mailfence is the encrypted email pick for small businesses and professionals who need more than just secure messaging, you get calendars, contacts, document storage, and group workspaces all under one encrypted roof.
What holds up
Full OpenPGP end-to-end encryption with key management
Includes calendar, contacts, document storage, and group workspaces
Belgian jurisdiction with strong legal privacy protections
Supports custom domains on paid plans
IMAP/SMTP/POP3 support for use with external email clients
What to know
Interface feels dated compared to Proton Mail or Gmail
Free plan is limited to 500MB storage
Smaller user base means less community support and fewer integrations
No dedicated desktop app, web and mobile only
Expert verdict
Mailfence offers end-to-end encryption using OpenPGP, along with digital signatures to verify the authenticity of messages.
StartMail is the pick if alias management and anonymous sign-up are your top priorities. The unlimited burner addresses make it ideal for anyone who wants to compartmentalize their online identity without juggling multiple accounts.
What holds up
Unlimited disposable email aliases to protect your real address
No personal information required to sign up
Built-in PGP encryption with easy key management
Netherlands-based under strict EU privacy law
IMAP support for use with external email clients like Thunderbird
What to know
No free plan, paid only after trial period
Smaller storage allocation than competitors at base tier
Less polished mobile experience than Proton Mail
No bundled suite of privacy tools like Proton offers
Expert verdict
StartMail is a privacy-focused email service that allows users to create disposable email addresses to protect their real email address from spam and data breaches.
Skiff is the encrypted email pick for users who also want encrypted cloud storage and document collaboration in one place. It's newer and less battle-tested than Proton, but the interface is genuinely excellent and the free tier is hard to beat.
What holds up
End-to-end encrypted email, docs, and cloud storage in one platform
Fully open-source codebase available for public audit
Generous free plan with 10GB storage
Modern, clean interface that rivals mainstream email clients
Supports custom domains on paid plans
What to know
Newer service with less of a track record than Proton or Tutanota
Smaller community and fewer third-party integrations
No IMAP/SMTP support for external email clients
Mobile apps less mature than web experience
Expert verdict
Skiff Mail offers end-to-end encrypted email that integrates with Skiff's broader suite of privacy-focused productivity tools including docs and cloud storage.
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