Proton Mail is our recommendation for users who want a Gmail replacement that takes privacy seriously without sacrificing daily usability. Made by Swiss researchers and launched at CERN in 2014, Proton has matured into the most comprehensive privacy-focused email and productivity suite available.

Why move away from Gmail

Gmail’s scanning of email content for ad targeting was discontinued in 2017 for personal Gmail accounts (still active for Workspace ad targeting). However, Gmail still:

  • Stores email content unencrypted on Google servers
  • Subject to US legal process (subpoenas, NSL letters)
  • Provides metadata (subject lines, senders, recipients) to advertisers for “personalization”
  • Required to comply with the CLOUD Act for cross-border data requests

For users who handle sensitive client communications, journalists, activists, or anyone uncomfortable with their email being a data product, this is a meaningful concern.

What Proton encrypts

Proton Mail uses end-to-end encryption (E2EE) on email content between two Proton Mail users. This means the email body is encrypted on your device before transmission and decrypted only on the recipient’s device. Even Proton cannot read the content of these emails.

For email to and from non-Proton addresses (Gmail, Outlook, anything else), Proton encrypts the body at rest on their servers. The body is not E2EE because the recipient’s mail server cannot decrypt it. However, the encrypted-at-rest setup still protects you from:

  • Server breaches
  • Insider access at Proton
  • Government data requests where Swiss law applies

You can also send password-protected emails to non-Proton users (a single use case where E2EE applies cross-platform), and use PGP keys for advanced users who already have PGP infrastructure.

Pricing breakdown

Free (Mail Free):

  • 1GB storage
  • 150 messages per day
  • 1 email address (yourname@proton.me)
  • Mobile and web apps

Mail Plus ($4.99/month, $47.88/year):

  • 15GB storage
  • Unlimited messages
  • 1 custom domain
  • 10 email addresses
  • Calendar with unlimited events

Unlimited ($12.99/month, $119.88/year):

  • 500GB storage shared across Mail, Drive, Calendar
  • 3 custom domains
  • 15 email addresses
  • ProtonVPN included (otherwise $10/month standalone)
  • Proton Pass (password manager) included
  • Sentinel (high-security mode)

The Unlimited tier is the best value for a privacy-conscious individual user, because it bundles four services that would cost ~$25/month if subscribed individually (Mail, Drive, VPN, Pass).

Migration from Gmail

Proton offers a one-click Gmail importer:

  1. Sign up at proton.me/mail
  2. In settings, go to “Import & export” then “Import emails”
  3. Sign in to your Gmail account via Google OAuth
  4. Choose which folders to import (Inbox, Sent, archived labels)
  5. Wait for the import to complete (typically 2-12 hours depending on volume)

Calendar and contacts can be imported separately via Google Takeout export then upload to Proton.

The most common friction point: years of email habits trained on Gmail’s interface. The Proton Mail web client is similar but not identical, and takes about 2 weeks of daily use to become muscle memory. The mobile apps are excellent on iOS and Android.

Who should buy Proton

Buy Proton Mail if:

  • You handle sensitive communications (journalist, lawyer, activist, healthcare professional)
  • You are uncomfortable with email content stored unencrypted at any major provider
  • You want a single subscription for Mail, VPN, Drive, password manager (Unlimited tier)
  • You prefer European jurisdiction (Swiss law) over US jurisdiction for legal data requests

Stay with Gmail or Outlook if:

  • Your email is purely personal and not sensitive
  • You rely heavily on Google Workspace integration (Docs, Sheets, Meet)
  • You need advanced filtering rules that Proton’s interface does not yet support

Setup time

15 minutes total:

  1. Sign up at proton.me/mail with desired username
  2. Set a strong master password (24+ characters, written on paper backup)
  3. Enable 2FA on the Proton account
  4. Install Proton Mail mobile app on iOS or Android
  5. Optional: install Proton Mail Bridge for Mac/Windows desktop email clients (Apple Mail, Thunderbird, Outlook)
  6. Set up custom domain forwarding from your old email to Proton (optional)

After setup, you can use Proton as primary or as a parallel privacy-account for sensitive communications while keeping Gmail for low-risk daily mail.

Editorial independence note: Tech Sensei recommends Proton Mail because the privacy architecture is technically credible and the Unlimited tier is good value bundled. We earn standard affiliate commission, but the product would receive the same score regardless.