Best Email Security Software · 2026
IRONSCALES vs 
Mimecast Advanced Email Security IRONSCALES vs Mimecast Advanced Email Security: on our data-weighted scoring, IRONSCALES edges ahead (8.4 vs 7.9/10). IRONSCALES starts at $3.11/mailbox/mo and is best for msps and mid-market teams wanting human + ai phishing defense with public self-serve pricing; Mimecast Advanced Email Security starts at Custom quote and is best for mid-market to enterprise teams wanting email security bundled with archiving + continuity. Choose IRONSCALES for the stronger overall track record; consider Mimecast Advanced Email Security if its pricing model or fit matches your environment better. Side-by-side table below.
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Six criteria, each scored 0–10 on the same scale from real review data, public pricing and feature coverage. See our methodology →
| Criterion | IRONSCALES | Mimecast Advanced Email Security |
|---|---|---|
| Editorial | 8.4 | 7.9 |
| User reviews | 9.4 | 8.8 |
| Adoption | 4.4 | 6.5 |
| Affordability | 9.5 | 5.0 |
| Feature breadth | 6.0 | 6.0 |
| Ease of trial | 10.0 | 6.0 |
| IRONSCALES | Mimecast Advanced Email Security | |
|---|---|---|
| Starting price | $3.11/mailbox/mo | Custom quote |
| Pricing model | per user | quote |
| Free trial / tier | Free tier + 14 days | 30 days |
| Best for | MSPs and mid-market teams wanting human + AI phishing defense with public self-serve pricing | Mid-market to enterprise teams wanting email security bundled with archiving + continuity |
| Deployment | Cloud | Cloud |
| G2 rating | 4.7/5 (45) | 4.4/5 (297) |
| Capterra rating | — | — |
| Our score | 8.4 | 7.9 |
You need msps and mid-market teams wanting human + ai phishing defense with public self-serve pricing.
You need mid-market to enterprise teams wanting email security bundled with archiving + continuity.
IRONSCALES bills on a per user model from $3.11/mailbox/mo (free tier available), while Mimecast Advanced Email Security uses a quote model from Custom quote (30 days trial). Because the models differ, the cheaper option flips depending on your fleet size — model both at your seat/endpoint count.
IRONSCALES ships 6 headline capabilities (API-based deployment (no MX change), Human + AI crowdsourced detection, Automated phishing remediation, Phishing simulation + training) and deploys Cloud. Mimecast Advanced Email Security ships 6 (Secure email gateway, CyberGraph AI threat intel, Built-in email archiving (10+ yr), Mailbox continuity), deploying Cloud.
IRONSCALES holds 4.7/5 (~45 G2 reviews); Mimecast Advanced Email Security holds 4.4/5 (~297 G2 reviews). On our data-weighted score, IRONSCALES edges ahead (8.4 vs 7.9/10). Pick Mimecast Advanced Email Security instead when mid-market to enterprise teams wanting email security bundled with archiving + continuity. See IRONSCALES alternatives or Mimecast Advanced Email Security alternatives.