Proton Mail for Business vs mail.com
In short: Proton Mail for Business wins on privacy, mail.com wins on price, and Proton Mail for Business wins on features. The full comparison is below, last checked 25 October 2026.
Should you pick Proton Mail for Business or mail.com?
- Proton Mail for Business suits you best if you want end-to-end encryption built in; your mailbox stored in Switzerland; and a provider with no advertising business behind it.
- Choose mail.com if you want email without paying for it; a free plan to start on; and 65 GB of storage.
| Feature | Proton Mail for Business | mail.com |
|---|---|---|
| Overall | 4.0 | 2.5 |
| Privacy | 4.5 | 0.0 |
| Price | 2.5 | 5.0 |
| Features | 4.5 | 4.0 |
| Cheapest plan | Mail Essentials $6.99 per user a month | Free Free |
| Free plan | No | Yes, with adverts |
| Storage | 15 GB | 65 GB |
| Your own domain | ✓ 3 | No |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Switzerland | United States |
| Your data is kept in | Switzerland | United States |
| Founded | 2014 | 1995 |
| Free trial | 30-day refund | Free |
| Funded by advertising | No | Yes, or its parent company is |
| Works in any mail app | With Proton Bridge on paid plans | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes | Up to 10 addresses |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
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The key differences
- Cheapest plans: Proton Mail for Business Mail Essentials, $6.99 per user a month. mail.com Free, Free.
- Proton Mail for Business has no free plan; mail.com has a free plan (with adverts).
- Space: Proton Mail for Business gives 15 GB of storage, mail.com 65 GB of storage.
- Your mail is stored in Switzerland with Proton Mail for Business, and in the United States with mail.com.
- The companies sit under different laws: Proton Mail for Business in Switzerland, mail.com in United States.
- On encryption, Proton Mail for Business encrypts mail end to end, whereas mail.com doesn't encrypt mail end to end.
- You can use your own domain with Proton Mail for Business, but not with mail.com.
- Mail apps: Proton Mail for Business works in other mail apps through Proton Bridge on paid plans; mail.com works in any mail app over IMAP.
- mail.com (or its parent company) makes money from advertising; Proton Mail for Business doesn't.
- Aliases: Proton Mail for Business offers yes, mail.com up to 10 addresses.
Proton Mail for Business and mail.com: your questions
Is Proton Mail for Business more private than mail.com?
Proton Mail for Business scores 4.5 out of 5 for privacy and mail.com 0. Proton Mail for Business gives you end-to-end encryption built in, your mailbox stored in Switzerland and a provider with no advertising business behind it.
Is Proton Mail for Business cheaper than mail.com?
mail.com costs nothing to start (Free). Proton Mail for Business's cheapest plan, Mail Essentials, is $6.99 per user a month.
Can I use my own domain with Proton Mail for Business or mail.com?
Only Proton Mail for Business does (3 domains on its cheapest plan that allows one). With mail.com your address stays on its own domain.
Where is my email stored with Proton Mail for Business and mail.com?
Proton Mail for Business keeps it in Switzerland. mail.com keeps it in the United States.
Can I use Proton Mail for Business and mail.com in Apple Mail or Outlook?
Proton Mail for Business works in other mail apps through Proton Bridge on paid plans. mail.com works in any mail app over IMAP.
Prices and the latest news
No price changes for either since 22 October 2026. I check regularly and add any change here with its date.
The latest headlines: Proton Mail for Business news · mail.com news.
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Switching between them
Moving between any two providers works the same way. Pick your two providers for the steps.