Tuta vs Microsoft 365 Business
In short: Tuta wins on privacy, Tuta wins on price, and Microsoft 365 Business wins on features. The full comparison is below, last checked 22 October 2026.
Tuta or Microsoft 365 Business: which should you choose?
- Tuta suits you best if you want encryption that means even the provider can't read your mail; a company that isn't funded by advertising; and to pay less: About €3 a month, yearly.
- Microsoft 365 Business is the better pick if you want more room (50 GB, against 20 GB); the choice of any mail app over IMAP; and features the other lacks, like POP3 as well as API.
| Feature | Tuta | Microsoft 365 Business |
|---|---|---|
| Overall | 4.5 | 2.5 |
| Privacy | 4.5 | 1.0 |
| Price | 4.0 | 2.5 |
| Features | 4.0 | 5.0 |
| Cheapest plan | Revolutionary About €3 a month, yearly | Business Basic £5.40 per user a month, yearly, ex VAT |
| Free plan | Yes, 1 GB | No |
| Storage | 20 GB | 50 GB |
| Your own domain | ✓ 3 | ✓ Yes |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Germany | United States |
| Your data is kept in | Germany | UK data centres for UK tenants (London, Cardiff, Durham) |
| Founded | 2011 | 2011 |
| Free trial | Free plan | One month free on some plans |
| Funded by advertising | No | Yes, or its parent company is |
| Works in any mail app | No, its own apps only | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes, with catch-all | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 22 October 2026 |
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The key differences
- Tuta's cheapest plan is Revolutionary (About €3 a month, yearly); Microsoft 365 Business's is Business Basic (£5.40 per user a month, yearly, ex VAT).
- For free, Tuta gives you a free plan (1 GB), and Microsoft 365 Business no free plan.
- Tuta comes with 20 GB of storage and Microsoft 365 Business with 50 GB of storage.
- Tuta keeps your mail in Germany, while Microsoft 365 Business keeps it in the UK data centres for UK tenants (London, Cardiff, Durham).
- Tuta is based in Germany and Microsoft 365 Business in the United States, so different privacy laws apply.
- Tuta encrypts mail end to end; Microsoft 365 Business doesn't encrypt mail end to end.
- Tuta only works in its own apps, and Microsoft 365 Business works in any mail app over IMAP.
- Only Microsoft 365 Business is part of an advertising business.
- For extra addresses, Tuta has yes, with catch-all and Microsoft 365 Business has yes.
Tuta and Microsoft 365 Business: your questions
Which is more private, Tuta or Microsoft 365 Business?
Tuta scores 4.5 out of 5 for privacy and Microsoft 365 Business 1. Tuta gives you encryption that means even the provider can't read your mail, a company that isn't funded by advertising and open-source apps anyone can check.
Which is cheaper, Tuta or Microsoft 365 Business?
Tuta is cheaper. Its Revolutionary plan is About €3 a month, yearly, against £5.40 per user a month, yearly, ex VAT for Microsoft 365 Business's Business Basic. Tuta also has a free plan. Check the renewal price before you pay, as some first-year prices go up.
Do Tuta and Microsoft 365 Business work with my own domain?
Yes, both do. Tuta: 3 domains on its cheapest plan that allows one. Microsoft 365 Business: Yes.
Where do Tuta and Microsoft 365 Business keep my email?
Tuta keeps it in Germany. Microsoft 365 Business keeps it in the UK data centres for UK tenants (London, Cardiff, Durham).
Do Tuta and Microsoft 365 Business work in other mail apps?
Tuta only works in its own apps. Microsoft 365 Business works in any mail app over IMAP.
Price changes and news
- 27 July 2026 Microsoft 365 Business: £5.40 (UK price change from 1 July 2026)
- 1 June 2026 Microsoft 365 Business: £4.90
The latest headlines: Tuta news · Microsoft 365 Business news.
Alternatives to Tuta and Microsoft 365 Business
Tuta vs mailbox.org · Microsoft 365 Business vs mailbox.org · Tuta vs Posteo · Microsoft 365 Business vs Posteo · Tuta vs Proton Mail · Microsoft 365 Business vs Proton Mail
Moving your email
Ready to move? My step-by-step guides cover your mail, contacts, forwarding and your own domain: Tuta to Microsoft 365 Business · Microsoft 365 Business to Tuta.