UK2 vs Mailu
In short: UK2 wins on privacy, UK2 wins on price, and UK2 wins on features. The full comparison is below, last checked 25 October 2026.
Should you pick UK2 or Mailu?
- UK2 is the better pick if you want your mailbox stored in the United Kingdom.
- Mailu is the better pick if you want a free plan to start on and apps whose code is public.
| Feature | UK2 | Mailu |
|---|---|---|
| Overall | 3.0 | Not rated |
| Privacy | 2.5 | Not rated |
| Price | 3.5 | Not rated |
| Features | 3.5 | Not rated |
| Cheapest plan | Web hosting From £3.99 a month (£1 for the first month), web hosting with a 10 GB mailbox | Open source Free |
| Free plan | No | Yes, open source |
| Storage | 10 GB | Not confirmed |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United Kingdom | Not confirmed |
| Your data is kept in | United Kingdom | Your own server |
| Founded | 1998 | Unknown |
| Free trial | 30-day money-back guarantee | 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 |
Want to add another? Open this in the compare tool.
How UK2 and Mailu differ
- UK2's cheapest plan is Web hosting (From £3.99 a month (£1 for the first month), web hosting with a 10 GB mailbox); Mailu's is Open source (Free).
- For free, UK2 gives you no free plan, and Mailu a free plan (open source).
- UK2 comes with 10 GB of storage and Mailu with storage not confirmed.
- Your mail is stored in the United Kingdom with UK2, and in Your own server with Mailu.
- UK2 is based in the United Kingdom and Mailu in Not confirmed, so different privacy laws apply.
Questions people ask
Do UK2 and Mailu work with my own domain?
Yes, both do. UK2: Yes. Mailu: Yes.
Where do UK2 and Mailu keep my email?
UK2 keeps it in the United Kingdom. Mailu keeps it in Your own server.
Recent price changes
No price changes for either since 25 October 2026. I check regularly and add any change here with its date.
The latest headlines: UK2 news · Mailu news.
Alternatives to UK2 and Mailu
- mailbox.org4.5 out of 5 overall
- Proton Mail for Business4.0 out of 5 overall
- Tuta Business4.0 out of 5 overall
UK2 vs mailbox.org · Mailu vs mailbox.org · UK2 vs Proton Mail for Business · Mailu vs Proton Mail for Business · UK2 vs Tuta Business · Mailu vs Tuta Business
How to switch
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.