Soverin vs Firefox Relay
Soverin wins on privacy, Firefox Relay wins on price and Soverin wins on features. Every fact below was checked on or before 25 October 2026.
Which should you choose?
- Soverin is the better pick if you want your mail kept in the Netherlands; to use your own domain, like you@yourname.co.uk; and more space for your mail: 25 GB.
- Firefox Relay is the better pick if you want a cheaper plan, at $0.99 a month; a free plan to start on; and open-source apps.
| Feature | Soverin | Firefox Relay |
|---|---|---|
| Overall | 3.5 | 2.5 |
| Privacy | 2.5 | 1.0 |
| Price | 4.0 | 5.0 |
| Features | 5.0 | Not rated |
| Cheapest plan | Private Mailbox €3.25 a month, yearly | Premium $0.99 a month |
| Free plan | No | Yes, 5 aliases |
| Storage | 25 GB | Forwards only |
| Your own domain | ✓ Yes | Own subdomain only |
| End-to-end encryption | No | No |
| Company based in | Netherlands | United States (Mozilla) |
| Your data is kept in | Netherlands | United States |
| Founded | Unknown | 2020 |
| Free trial | No free trial; 30-day money-back guarantee | Free plan |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | No, its own apps only |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Unlimited | Unlimited aliases |
| Open-source apps | No | ✓ Yes |
| Sign up without ID | No | No |
| White label | Unknown | No |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- Soverin's cheapest plan is Private Mailbox (€3.25 a month, yearly); Firefox Relay's is Premium ($0.99 a month).
- For free, Soverin gives you no free plan, and Firefox Relay a free plan (5 aliases).
- Soverin comes with 25 GB of storage and Firefox Relay with no storage, as it forwards mail on.
- Soverin keeps your mail in the Netherlands, while Firefox Relay keeps it in the United States.
- Soverin is based in the Netherlands and Firefox Relay in the United States (Mozilla), so different privacy laws apply.
- Soverin lets you bring your own domain name; Firefox Relay doesn't.
- Soverin works in any mail app over IMAP, and Firefox Relay only works in its own apps.
- For extra addresses, Soverin has unlimited and Firefox Relay has unlimited aliases.
Common questions
Which is more private, Soverin or Firefox Relay?
Soverin scores 2.5 out of 5 for privacy and Firefox Relay 1. Soverin gives you your mail kept in the Netherlands.
Which is cheaper, Soverin or Firefox Relay?
Firefox Relay is cheaper. Its Premium plan is $0.99 a month, against €3.25 a month, yearly for Soverin's Private Mailbox. Firefox Relay also has a free plan. Check the renewal price before you pay, as some first-year prices go up.
Do Soverin and Firefox Relay work with my own domain?
Only Soverin does (Yes). With Firefox Relay your address stays on its own domain.
Where do Soverin and Firefox Relay keep my email?
Soverin keeps it in the Netherlands. Firefox Relay keeps it in the United States.
Do Soverin and Firefox Relay work in other mail apps?
Soverin works in any mail app over IMAP. Firefox Relay only works in its own apps.
Prices and the latest news
I haven't seen either change its price since I started checking on 25 October 2026.
The latest headlines: Soverin news · Firefox Relay news.
Also worth a look
Soverin vs mailbox.org · Firefox Relay vs mailbox.org · Soverin vs Posteo · Firefox Relay vs Posteo · Soverin vs Proton Mail · Firefox Relay vs Proton Mail
Switching between them
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.