Fastmail for Business vs Soverin
In short: Soverin wins on privacy, Soverin wins on price, and they tie on features. The full comparison is below, last checked 25 October 2026.
Which should you choose?
- Fastmail for Business suits you best if you want more room (50 GB, against 25 GB).
- Soverin is the better pick if you want to pay less: €3.25 a month, yearly.
| Feature | Fastmail for Business | Soverin |
|---|---|---|
| Overall | 3.0 | 3.5 |
| Privacy | 2.0 | 2.5 |
| Price | 3.5 | 4.0 |
| Features | 5.0 | 5.0 |
| Cheapest plan | Standard $5 per user a month ($4.17 yearly) | Private Mailbox €3.25 a month, yearly |
| Free plan | No | No |
| Storage | 50 GB | 25 GB |
| Your own domain | ✓ Up to 100 | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | Australia | Netherlands |
| Your data is kept in | EU (Amsterdam) for UK customers, with a US replica and US backups | Netherlands |
| Founded | 1999 | Unknown |
| Free trial | 30 days free | No free trial; 30-day money-back guarantee |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes | Unlimited |
| Open-source apps | No | No |
| Sign up without ID | No | No |
| White label | No | Unknown |
| Reader offer | Offer 10% off your first year, plus a free trial of up to 30 days | None |
| Last checked | 22 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- On price: Fastmail for Business Standard at $5 per user a month ($4.17 yearly), against Soverin Private Mailbox at €3.25 a month, yearly.
- Fastmail for Business comes with 50 GB of storage and Soverin with 25 GB of storage.
- Fastmail for Business keeps your mail in the EU (Amsterdam) for UK customers, with a US replica and US backups, while Soverin keeps it in the Netherlands.
- Fastmail for Business is based in Australia and Soverin in the Netherlands, so different privacy laws apply.
- For extra addresses, Fastmail for Business has yes and Soverin has unlimited.
Questions people ask
Which is more private, Fastmail for Business or Soverin?
Soverin scores 2.5 out of 5 for privacy and Fastmail for Business 2.
Which is cheaper, Fastmail for Business or Soverin?
Soverin is cheaper. Its Private Mailbox plan is €3.25 a month, yearly, against $5 per user a month ($4.17 yearly) for Fastmail for Business's Standard. Check the renewal price before you pay, as some first-year prices go up.
Do Fastmail for Business and Soverin work with my own domain?
Yes, both do. Fastmail for Business: Up to 100. Soverin: Yes.
Where do Fastmail for Business and Soverin keep my email?
Fastmail for Business keeps it in the EU (Amsterdam) for UK customers, with a US replica and US backups. Soverin keeps it in the Netherlands.
Prices and the latest news
Neither price has changed since my first check on 22 October 2026.
The latest headlines: Fastmail for Business news · Soverin news.
Alternatives to Fastmail for Business and Soverin
Fastmail for Business vs mailbox.org · Soverin vs mailbox.org · Fastmail for Business vs Posteo · Soverin vs Posteo · Fastmail for Business vs Proton Mail · Soverin vs Proton Mail
Switching between them
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.