Stalwart vs Blacknight
In short: Blacknight wins on privacy, Blacknight wins on price, and Blacknight wins on features. The full comparison is below, last checked 25 October 2026.
Should you pick Stalwart or Blacknight?
- Choose Stalwart if you want a free plan before you pay anything and apps whose code is public.
| Feature | Stalwart | Blacknight |
|---|---|---|
| Overall | Not rated | 3.0 |
| Privacy | Not rated | 1.5 |
| Price | Not rated | 4.0 |
| Features | Not rated | 4.5 |
| Cheapest plan | Community Free (Enterprise from €2 per mailbox a year) | Titan Pro €2.50 a mailbox a month |
| Free plan | Yes, open source | No |
| Storage | Not confirmed | 10 GB |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United Kingdom | Ireland |
| Your data is kept in | Your own server | Not confirmed |
| Founded | 2019 | Unknown |
| Free trial | Free to download | Unknown |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| 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 | 22 October 2026 |
Want to add another? Open this in the compare tool.
How Stalwart and Blacknight differ
- Cheapest plans: Stalwart Community, Free (Enterprise from €2 per mailbox a year). Blacknight Titan Pro, €2.50 a mailbox a month.
- Stalwart has a free plan (open source); Blacknight has no free plan.
- Space: Stalwart gives storage not confirmed, Blacknight 10 GB of storage.
- Stalwart keeps your mail in Your own server, while Blacknight keeps it in Not confirmed.
- The companies sit under different laws: Stalwart in United Kingdom, Blacknight in Ireland.
Common questions
Can I use my own domain with Stalwart or Blacknight?
Yes, both do. Stalwart: Yes. Blacknight: Yes.
Where is my email stored with Stalwart and Blacknight?
Stalwart keeps it in Your own server. Blacknight keeps it in Not confirmed.
Price changes and news
No price changes for either since 22 October 2026. I check regularly and add any change here with its date.
The latest headlines: Stalwart news · Blacknight news.
Also worth a look
- 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 · Blacknight vs mailbox.org · Stalwart vs Proton Mail for Business · Blacknight vs Proton Mail for Business · Stalwart vs Tuta Business · Blacknight vs Tuta Business
How to switch
Moving between any two providers works the same way. Pick your two providers for the steps.