Stalwart vs one.com
On privacy it's one.com. On price it's a tie. On features it's one.com. Here's everything side by side, last checked 25 October 2026.
Should you pick Stalwart or one.com?
- Go for Stalwart if you'd like a free plan before you pay anything; your diary and address book in one place with your email; and open-source apps.
- one.com is the better pick if you want your mailbox stored in Denmark.
| Feature | Stalwart | one.com |
|---|---|---|
| Overall | Not rated | Not rated |
| Privacy | Not rated | 2.5 |
| Price | Not rated | Not rated |
| Features | Not rated | 3.0 |
| Cheapest plan | Community Free (Enterprise from €2 per mailbox a year) | Email Not confirmed |
| Free plan | Yes, open source | No |
| Storage | Not confirmed | 3 GB |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United Kingdom | Denmark |
| Your data is kept in | Your own server | Denmark |
| Founded | 2019 | Unknown |
| Free trial | Free to download | 15-day money-back guarantee |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Yes | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | Unknown | Unknown |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
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How Stalwart and one.com differ
- Cheapest plans: Stalwart Community, Free (Enterprise from €2 per mailbox a year). one.com Email, Not confirmed.
- Stalwart has a free plan (open source); one.com has no free plan.
- Space: Stalwart gives storage not confirmed, one.com 3 GB of storage.
- Stalwart keeps your mail in Your own server, while one.com keeps it in Denmark.
- The companies sit under different laws: Stalwart in United Kingdom, one.com in Denmark.
Common questions
Can I use my own domain with Stalwart or one.com?
Yes, both do. Stalwart: Yes. one.com: Yes.
Where is my email stored with Stalwart and one.com?
Stalwart keeps it in Your own server. one.com keeps it in Denmark.
Recent price changes
I haven't seen either change its price since I started checking on 25 October 2026.
The latest headlines: Stalwart news · one.com news.
Alternatives to Stalwart and one.com
- mailbox.org4.5 out of 5 overall
- Proton Mail for Business4.0 out of 5 overall
- Tuta Business4.0 out of 5 overall
Stalwart vs mailbox.org · one.com vs mailbox.org · Stalwart vs Proton Mail for Business · one.com vs Proton Mail for Business · Stalwart vs Tuta Business · one.com vs Tuta Business
How to switch
Moving between any two providers works the same way. Pick your two providers for the steps.