Microsoft 365 Business vs Zen Internet
Zen Internet wins on privacy, Microsoft 365 Business wins on price and Microsoft 365 Business wins on features. Every fact below was checked on or before 25 October 2026.
Should you pick Microsoft 365 Business or Zen Internet?
- Choose Microsoft 365 Business if you want calendar and contacts in the same account.
- Zen Internet suits you best if you want a provider with no advertising business behind it and more years of history: it started in 1995.
| Feature | Microsoft 365 Business | Zen Internet |
|---|---|---|
| Overall | 2.5 | Not rated |
| Privacy | 1.0 | 2.5 |
| Price | 2.5 | Not rated |
| Features | 5.0 | 3.5 |
| Cheapest plan | Business Basic £5.40 per user a month, yearly, ex VAT | Web hosting Not confirmed |
| Free plan | No | No |
| Storage | 50 GB | Not confirmed |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United States | United Kingdom |
| Your data is kept in | UK data centres for UK tenants (London, Cardiff, Durham) | United Kingdom |
| Founded | 2011 | 1995 |
| Free trial | One month free on some plans | Unknown |
| Funded by advertising | Yes, or its parent company is | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Yes | Yes |
| Open-source apps | No | No |
| Sign up without ID | No | No |
| White label | No | Unknown |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
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How Microsoft 365 Business and Zen Internet differ
- Microsoft 365 Business's cheapest plan is Business Basic (£5.40 per user a month, yearly, ex VAT); Zen Internet's is Web hosting (Not confirmed).
- Space: Microsoft 365 Business gives 50 GB of storage, Zen Internet storage not confirmed.
- Your mail is stored in the UK data centres for UK tenants (London, Cardiff, Durham) with Microsoft 365 Business, and in the United Kingdom with Zen Internet.
- The companies sit under different laws: Microsoft 365 Business in United States, Zen Internet in United Kingdom.
- Microsoft 365 Business (or its parent company) makes money from advertising; Zen Internet doesn't.
Questions people ask
Is Microsoft 365 Business more private than Zen Internet?
Zen Internet scores 2.5 out of 5 for privacy and Microsoft 365 Business 1. Zen Internet gives you a provider with no advertising business behind it.
Can I use my own domain with Microsoft 365 Business or Zen Internet?
Yes, both do. Microsoft 365 Business: Yes. Zen Internet: Yes.
Where is my email stored with Microsoft 365 Business and Zen Internet?
Microsoft 365 Business keeps it in the UK data centres for UK tenants (London, Cardiff, Durham). Zen Internet keeps it in the United Kingdom.
Recent price changes
- 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: Microsoft 365 Business news · Zen Internet news.
Not sold on either? Try these
- mailbox.org4.5 out of 5 overall
- Tuta Business4.0 out of 5 overall
- Proton Mail for Business4.0 out of 5 overall
Microsoft 365 Business vs mailbox.org · Zen Internet vs mailbox.org · Microsoft 365 Business vs Tuta Business · Zen Internet vs Tuta Business · Microsoft 365 Business vs Proton Mail for Business · Zen Internet vs Proton Mail for Business
Switching between them
Moving to Microsoft 365 Business · Moving from Microsoft 365 Business. Or see all my switching guides.