Proton Mail for Business vs 123 Reg
In short: Proton Mail for Business wins on privacy, 123 Reg wins on price, and Proton Mail for Business wins on features. The full comparison is below, last checked 25 October 2026.
Proton Mail for Business or 123 Reg: which should you choose?
- Proton Mail for Business suits you best if you want mail that's encrypted end to end without any setup; your mail kept in Switzerland; and more space for your mail: 15 GB.
- Go for 123 Reg if you'd like the lower price (£1.99 a mailbox a month for the first year, then £47.88 a year); the choice of any mail app over IMAP; and a company with a longer track record (since 2000).
| Feature | Proton Mail for Business | 123 Reg |
|---|---|---|
| Overall | 4.0 | 2.0 |
| Privacy | 4.5 | 0.5 |
| Price | 2.5 | 3.5 |
| Features | 4.5 | 3.5 |
| Cheapest plan | Mail Essentials $6.99 per user a month | 10 GB mailbox £1.99 a mailbox a month for the first year, then £47.88 a year |
| Free plan | No | No |
| Storage | 15 GB | 10 GB |
| Your own domain | ✓ 3 | ✓ Yes |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Switzerland | United Kingdom (GoDaddy) |
| Your data is kept in | Switzerland | Not confirmed |
| Founded | 2014 | 2000 |
| Free trial | 30-day refund | Unknown |
| Funded by advertising | No | No |
| Works in any mail app | With Proton Bridge on paid plans | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Yes | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | No | Unknown |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
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How Proton Mail for Business and 123 Reg differ
- Cheapest plans: Proton Mail for Business Mail Essentials, $6.99 per user a month. 123 Reg 10 GB mailbox, £1.99 a mailbox a month for the first year, then £47.88 a year.
- Space: Proton Mail for Business gives 15 GB of storage, 123 Reg 10 GB of storage.
- Proton Mail for Business keeps your mail in Switzerland, while 123 Reg keeps it in Not confirmed.
- The companies sit under different laws: Proton Mail for Business in Switzerland, 123 Reg in United Kingdom (GoDaddy).
- On encryption, Proton Mail for Business encrypts mail end to end, whereas 123 Reg doesn't encrypt mail end to end.
- Mail apps: Proton Mail for Business works in other mail apps through Proton Bridge on paid plans; 123 Reg works in any mail app over IMAP.
Proton Mail for Business and 123 Reg: your questions
Is Proton Mail for Business more private than 123 Reg?
Proton Mail for Business scores 4.5 out of 5 for privacy and 123 Reg 0.5. Proton Mail for Business gives you mail that's encrypted end to end without any setup, your mail kept in Switzerland and open-source apps anyone can check.
Is Proton Mail for Business cheaper than 123 Reg?
123 Reg is cheaper. Its 10 GB mailbox plan is £1.99 a mailbox a month for the first year, then £47.88 a year, against $6.99 per user a month for Proton Mail for Business's Mail Essentials. Check the renewal price before you pay, as some first-year prices go up.
Can I use my own domain with Proton Mail for Business or 123 Reg?
Yes, both do. Proton Mail for Business: 3 domains on its cheapest plan that allows one. 123 Reg: Yes.
Where is my email stored with Proton Mail for Business and 123 Reg?
Proton Mail for Business keeps it in Switzerland. 123 Reg keeps it in Not confirmed.
Can I use Proton Mail for Business and 123 Reg in Apple Mail or Outlook?
Proton Mail for Business works in other mail apps through Proton Bridge on paid plans. 123 Reg works in any mail app over IMAP.
Recent price changes
- 22 October 2026 123 Reg: £1.19 a month, when I checked
The latest headlines: Proton Mail for Business news · 123 Reg news.
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