T
TMailfence vs Proton Mail
Pricing, features, platforms and who each one suits — side by side.
M
Choose Mailfence if…
- you're in its core audience: privacy-conscious individuals, journalists and activists
P
Choose Proton Mail if…
- you want more storage (gb) (15 vs 5)
- you want more custom domains (1 vs 0)
- you need open-source apps
- you need no phone signup
- you're in its core audience: privacy-conscious individuals, journalists and activists
Side by side
Feature Mailfence Proton Mail
Per GB on the cheapest plan—$0.33
EncryptionOpenPGP end-to-end (opt-in), password-protected messages; no zero-accessOpenPGP end-to-end, zero-access at rest
PlatformsWeb, iOS, AndroidWeb, iOS, Android, macOS, Windows, Linux
CompanyMailfence · since 1999Proton AG
Full feature lists
M Mailfence
- Browser-side OpenPGP end-to-end encryption
- Digital signatures for outgoing email
- Built-in OpenPGP keystore for creating and importing keys
- Aliases and custom email domains with DKIM, SPF, DMARC
- POP, IMAP, SMTP and ActiveSync access
- Shared calendars, document storage and contact groups
- Two-factor authentication
- User management for teams
P Proton Mail
- End-to-end and zero-access encryption
- Email tracker blocking
- PhishGuard phishing protection with link confirmation
- Hide-my-email aliases
- Password-protected emails
- Easy Switch import from Gmail, Outlook, Yahoo
- IMAP/SMTP support via Bridge
- Schedule, undo send and snooze
Their home pages
What each vendor shows first: the pitch, the plans and the sign-up.
Mailfence · mailfence.com
Proton Mail · proton.meWhat you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
Mailfence
FreeFree
Base
Entry
Pro
Ultra
Proton Mail
Proton FreeFree
Mail Plus$3.99/mo billed yearly ($4.99 monthly)
Proton Unlimited$9.99/mo billed yearly ($12.99 monthly)
Strengths and limitations
Mailfence
- Free plan with 1 GB storage
- Interoperable with any OpenPGP service
- Includes calendar, documents and contacts alongside email
- Operating since 1999 under Belgian jurisdiction
- Free plan offers knowledge-base support only
- IMAP/SMTP access and custom domains start at the Entry plan
- Free and Base plans include no custom domains
Proton Mail
- Free plan with the same encryption as paid plans
- Open-source apps, independently audited
- Apps for web, desktop and mobile
- 30-day money-back guarantee
- Free plan limited to 1 GB storage and 150 messages per day
- No custom domain on the free plan
- Attachments capped at 25 MB on all plans
- Desktop app only a 14-day trial on the free plan
More comparisons
Other options to consider
TT
Freemium
T
End-to-end encrypted email, calendar and contacts with a free plan
Private emailFree planOpen source
Facts from each vendor's public pages, prices checked Nov 8, 2026. Editorial policy