Best Email Hosting · head-to-head
Zoho Mail vs Proton Mail for Business
A sourced, side-by-side comparison for email hosting. Zoho Mail has the lower entry price. 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.
Zoho Mail has the lower entry price — Zoho Mail starts at $0/user/mo, Proton Mail for Business at $7.99/user/mo. Free tier: Zoho Mail Yes, Proton Mail for Business No. HIPAA: Zoho Mail Yes, Proton Mail for Business Yes.
As of 2026-11-01 · figures link to their source below STALE
Side by side
Zoho Mail
$0/user/mo entryProton Mail for Business
$7.99/user/mo entrySources — Zoho Mail: zoho.com (verified 2026-11-01) STALE · 2026-09-27 · Proton Mail for Business: proton.me (verified 2026-10-12) STALE · 2026-09-02
Key features
Zoho Mail: Custom domain email with free plan up to 5 users; S/MIME encryption and email archiving with eDiscovery (Premium); SOC 2 Type 2 + HIPAA audited; ISO/IEC 27001, 27017, 27018, 27701 certified; GDPR-compliant with 72-hour breach notification commitment; PCI DSS compliant (valid through Oct 2026); Integrated Zoho Workplace suite (Writer, Sheet, Cliq, Meeting); Admin console with group email, eDiscovery, and mobile device management; 750+ third-party integrations via Zapier
Proton Mail for Business: End-to-end and zero-access encryption for all stored mail (no Proton access to content); HIPAA BAA available to all Proton users — contact [email protected]; SOC 2 Type II audited and ISO 27001 certified; GDPR compliant; governed by Swiss law with Data Processing Agreement included; Password-protected emails to non-Proton recipients; Encrypted calendar, cloud storage (Drive), VPN, and password manager in suite; Easy Switch migration tool from Google Workspace and Microsoft 365; 30-day money-back guarantee