Paubox vs Mailu
On privacy it's Paubox. On price it's Paubox. On features it's Paubox. Here's everything side by side, last checked 25 October 2026.
Paubox or Mailu: which should you choose?
- Choose Mailu if you want a free plan to start on and open-source apps.
| Feature | Paubox | Mailu |
|---|---|---|
| Overall | 2.0 | Not rated |
| Privacy | 1.5 | Not rated |
| Price | 2.0 | Not rated |
| Features | 3.5 | Not rated |
| Cheapest plan | Standard $32 a month for up to 5 users | Open source Free |
| Free plan | No | Yes, open source |
| Storage | Not confirmed | Not confirmed |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | Optional (PGP or encrypted storage) | No |
| Company based in | United States | Not confirmed |
| Your data is kept in | United States (US data centres only) | Your own server |
| Founded | Unknown | Unknown |
| Free trial | 14 days free | Free to download |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | No | No |
| Aliases | Yes | Yes |
| Open-source apps | No | ✓ Yes |
| 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 Paubox and Mailu differ
- Paubox's cheapest plan is Standard ($32 a month for up to 5 users); Mailu's is Open source (Free).
- Paubox has no free plan; Mailu has a free plan (open source).
- Data location: United States (US data centres only) for Paubox, Your own server for Mailu.
- The companies sit under different laws: Paubox in United States, Mailu in Not confirmed.
- On encryption, Paubox offers optional encryption (PGP or encrypted storage), whereas Mailu doesn't encrypt mail end to end.
Common questions
Can I use my own domain with Paubox or Mailu?
Yes, both do. Paubox: Yes. Mailu: Yes.
Where is my email stored with Paubox and Mailu?
Paubox keeps it in the United States (US data centres only). Mailu keeps it in Your own server.
Prices and the latest news
No price changes for either since 25 October 2026. I check regularly and add any change here with its date.
The latest headlines: Paubox news · Mailu 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
Paubox vs mailbox.org · Mailu vs mailbox.org · Paubox vs Proton Mail for Business · Mailu vs Proton Mail for Business · Paubox vs Tuta Business · Mailu vs Tuta Business
Switching between them
Moving between any two providers works the same way. Pick your two providers for the steps.