Mailfence vs Proton Mail for Business
Proton Mail for Business wins on privacy, Mailfence wins on price and they tie on features. Every fact below was checked on or before 22 October 2026.
Should you pick Mailfence or Proton Mail for Business?
- Choose Mailfence if you want to pay less: €3.50 a month; to try it free first; and to read your mail in any app, such as Apple Mail, Outlook or Thunderbird.
- Proton Mail for Business suits you best if you want encryption that means even the provider can't read your mail; more space for your mail: 15 GB; and open-source apps anyone can check.
| Feature | Mailfence | Proton Mail for Business |
|---|---|---|
| Overall | 4.0 | 4.0 |
| Privacy | 3.5 | 4.5 |
| Price | 4.0 | 2.5 |
| Features | 4.5 | 4.5 |
| Cheapest plan | Entry €3.50 a month | Mail Essentials $6.99 per user a month |
| Free plan | Yes, 500 MB–1 GB, no own domain | No |
| Storage | 10 GB | 15 GB |
| Your own domain | ✓ Yes | ✓ 3 |
| End-to-end encryption | Optional (PGP or encrypted storage) | ✓ Built in |
| Company based in | Belgium | Switzerland |
| Your data is kept in | Belgium | Switzerland |
| Founded | 2013 | 2014 |
| Free trial | Free plan | 30-day refund |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | With Proton Bridge on paid plans |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes | Yes |
| Open-source apps | No | ✓ Yes |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 22 October 2026 |
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The key differences
- Mailfence's cheapest plan is Entry (€3.50 a month); Proton Mail for Business's is Mail Essentials ($6.99 per user a month).
- Mailfence has a free plan (500 MB–1 GB, no own domain); Proton Mail for Business has no free plan.
- Space: Mailfence gives 10 GB of storage, Proton Mail for Business 15 GB of storage.
- Mailfence keeps your mail in Belgium, while Proton Mail for Business keeps it in Switzerland.
- The companies sit under different laws: Mailfence in Belgium, Proton Mail for Business in Switzerland.
- On encryption, Mailfence offers optional encryption (PGP or encrypted storage), whereas Proton Mail for Business encrypts mail end to end.
- Mail apps: Mailfence works in any mail app over IMAP; Proton Mail for Business works in other mail apps through Proton Bridge on paid plans.
Common questions
Is Mailfence more private than Proton Mail for Business?
Proton Mail for Business scores 4.5 out of 5 for privacy and Mailfence 3.5. Proton Mail for Business gives you encryption that means even the provider can't read your mail and open-source apps anyone can check.
Is Mailfence cheaper than Proton Mail for Business?
Mailfence is cheaper. Its Entry plan is €3.50 a month, against $6.99 per user a month for Proton Mail for Business's Mail Essentials. Mailfence also has a free plan. Check the renewal price before you pay, as some first-year prices go up.
Can I use my own domain with Mailfence or Proton Mail for Business?
Yes, both do. Mailfence: Yes. Proton Mail for Business: 3 domains on its cheapest plan that allows one.
Where is my email stored with Mailfence and Proton Mail for Business?
Mailfence keeps it in Belgium. Proton Mail for Business keeps it in Switzerland.
Can I use Mailfence and Proton Mail for Business in Apple Mail or Outlook?
Mailfence works in any mail app over IMAP. Proton Mail for Business works in other mail apps through Proton Bridge on paid plans.
Price changes and news
No price changes for either since 22 October 2026. I check regularly and add any change here with its date.
The latest headlines: Mailfence news · Proton Mail for Business news.
Alternatives to Mailfence and Proton Mail for Business
Mailfence vs mailbox.org · Proton Mail for Business vs mailbox.org · Mailfence vs Posteo · Proton Mail for Business vs Posteo · Mailfence vs Proton Mail · Proton Mail for Business vs Proton Mail
Switching between them
Moving to Mailfence · Moving from Mailfence. Or see all my switching guides.