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Best Proton Mail for Business alternatives (2026)
6 alternatives to Proton Mail for Business in email hosting, ranked by entry price. Proton Mail for Business starts at $7.99/user/mo. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.
Key takeaways
- Cheaper than Proton Mail for Business: Zoho Mail, IceWarp, Fastmail, MXroute, Microsoft 365 for Business.
- Free alternatives: Zoho Mail.
- Closest by price: Zoho Mail ($0/user/mo), IceWarp ($2.5/user/mo), Fastmail ($4/user/mo).
Proton Mail for Business alternatives compared
| # | Alternative | Entry price | Free | HIPAA | Best for | Source |
|---|---|---|---|---|---|---|
| 1 | Zoho Mail STALE · 2026-09-27 | $0/user/mo | Yes | Yes | Budget-conscious SMBs wanting free business email for up to 5 users | zoho.com |
| 2 | IceWarp STALE · 2026-06-13 | $2.5/user/mo | No | No | Organizations wanting an all-in-one email + chat + video + docs suite at lower per-seat cost than Google or Microsoft | icewarp.com |
| 3 | Fastmail STALE · 2026-09-26 | $4/user/mo | No | No | Privacy-conscious individuals and small teams who do not handle PHI | fastmail.com |
| 4 | MXroute STALE · 2026-09-26 | $4.92/mo | No | No | Developers and power users managing many domains on a fixed budget | mxroute.com |
| 5 | Microsoft 365 for Business STALE · 2026-09-14 | $7/user/mo | No | Yes | Organizations already using Microsoft desktop apps (Word, Excel, PowerPoint) | microsoft.com |
| 6 | Google Workspace STALE · 2026-09-02 | $8.4/user/mo | No | Yes | Teams already using Google Docs/Sheets/Slides ecosystem | workspace.google.com |
Data current through 2026-11-01. STALE marks a row whose price we have not re-checked at its source in over 30 days; a vendor with no published price is marked when any of its plans is. Every row above is marked — we flag rather than silently retain. Compare any two directly on the Email Hosting index.