Email Security4.5/5
Proton Mail Review (2026): Swiss Encrypted Email You Can Verify
Proton Mail review: open-source, independently audited, zero-access encrypted Swiss email with a genuinely usable free tier. Our 4.5/5 verdict for SMBs.
Free tier available · Mail Plus from ~$3.99/mo (annual) · Proton Unlimited ~$7.99–9.99/mo · Business from ~$7.99/user/mo. Intro rates renew higher; 30-day money-back.