BT Email vs Mailu
In short: BT Email wins on privacy, BT Email wins on price, and BT Email wins on features. The full comparison is below, last checked 25 October 2026.
Which should you choose?
- Mailu suits you best if you want to use your own domain, like you@yourname.co.uk and open-source apps.
| Feature | BT Email | Mailu |
|---|---|---|
| Overall | 2.0 | Not rated |
| Privacy | 1.5 | Not rated |
| Price | 2.0 | Not rated |
| Features | 2.5 | Not rated |
| Cheapest plan | Premium email £7.50 a month | Open source Free |
| Free plan | Basic email, webmail only | Yes, open source |
| Storage | Not confirmed | Not confirmed |
| Your own domain | No | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United Kingdom | Not confirmed |
| Your data is kept in | Not confirmed | Your own server |
| Founded | Unknown | Unknown |
| Free trial | Unknown | 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 | Up to 10 extra addresses | Yes |
| Open-source apps | No | ✓ Yes |
| Sign up without ID | No | No |
| White label | Unknown | Unknown |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- BT Email's cheapest plan is Premium email (£7.50 a month); Mailu's is Open source (Free).
- For free, BT Email gives you Basic email, webmail only, and Mailu a free plan (open source).
- Your mail is stored in Not confirmed with BT Email, and in Your own server with Mailu.
- BT Email is based in the United Kingdom and Mailu in Not confirmed, so different privacy laws apply.
- Mailu lets you bring your own domain name; BT Email doesn't.
- For extra addresses, BT Email has up to 10 extra addresses and Mailu has yes.
Questions people ask
Do BT Email and Mailu work with my own domain?
Only Mailu does (Yes). With BT Email your address stays on its own domain.
Where do BT Email and Mailu keep my email?
BT Email keeps it in Not confirmed. Mailu keeps it in Your own server.
Prices and the latest news
No price changes for either since 22 October 2026. I check regularly and add any change here with its date.
The latest headlines: BT Email news · Mailu news.
Also worth a look
BT Email vs mailbox.org · Mailu vs mailbox.org · BT Email vs Posteo · Mailu vs Posteo · BT Email vs Proton Mail · Mailu vs Proton Mail
Moving your email
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.