FrozenSpam vs Mimecast
Honest comparison. Updated May 2026.
One-sentence verdict — Mimecast is a complete enterprise email security platform (archive, continuity, AI anti-phishing). FrozenSpam is an SMB-targeted anti-spam Mimecast doesn't address.
Detailed comparison
| Criterion | FrozenSpam | Mimecast |
|---|---|---|
| Target | SMB 1-50 boxes | Enterprises 250+ boxes |
| Public pricing | ✓ €4.90 excl. VAT/month Solo | ✘ Quote ($5-10/box/month typical) |
| Self-service purchase | ✓ Online, €1 to start | ✘ RFP / long sales cycle |
| Hosting | France pure | Multi-region (UK/EU/US) |
| Explicit outbound auto-WL | ✓ | ≈ implicit via AI |
| 10-year archive | ✘ 30-day quarantine then purge | ✓ Strong Mimecast specialty |
| Continuity (backup mailbox) | ✘ | ✓ Backup mailbox on downstream MTA outage |
| AI anti-spear-phishing | ≈ Bayesian optional | ✓ Proprietary model |
| GDPR + ISO 27001 | ✓ GDPR | ✓ + ISO 27001 + SOC2 |
| Commitment | None | Annual/triennial |
What Mimecast does better
- Complete platform — anti-spam + long-term archive + continuity + DLP + phishing training. An email cybersecurity suite, not just anti-spam.
- Enterprise volume — Tens of thousands of boxes for banks, insurance, hospitals.
- Certifications — ISO 27001, SOC 2 Type II.
- 10-year archive required for regulated industries (finance, health).
What FrozenSpam does better for SMBs
- Accessible — €4.90 excl. VAT/month published. Mimecast typically $5-10/box/month after quote and negotiation.
- No RFP — Online sign-up, same-day start.
- No commitment — Monthly cancelable. Mimecast is annual/triennial.
- Joinable author — Emmanuel replies. Mimecast is enterprise support.
- Pure France hosting — Mimecast is multi-region; you don't control where mails sit without negotiation.
- Transparent architecture — We document our 5 layers. Mimecast is commercial black box.