Cisco Secure Email Threat Defense vs Sublime Security
Side-by-side from the Top 11 ranking of Abnormal Security vs Proofpoint vs Mimecast: 11 Best Email Security Software 2026. Last verified July 4, 2026.
The short answer
Cisco Secure Email Threat Defense ranks higher on Top 11 (#6 vs #11) for IT and security leaders. Talos-backed detection wired into the Cisco stack.
At a glance
| Cisco Secure Email Threat Defense | Sublime Security | |
|---|---|---|
| Top 11 rank | #6 / Abnormal Security vs Proofpoint vs Mimecast: 11 Best Email Security Software 2026 | #11 / Abnormal Security vs Proofpoint vs Mimecast: 11 Best Email Security Software 2026 |
| Score (out of 9.4) | 8.5 | — |
| Best for | Best for existing Cisco security shops | Best for detection-as-code control |
| Pricing | $$$ (custom, per-user enterprise pricing) | $ (free community tier, paid plans custom) |
| HQ | San Jose, USA | Washington, D.C., USA |
| Founded | 1984 | 2020 |
Cisco Secure Email Threat Defense
Talos-backed detection wired into the Cisco stack.
www.cisco.com/site/us/en/products/security/secure-email/index.htmlSee full entry in Abnormal Security vs Proofpoint vs Mimecast: 11 Best Email Security Software 2026
Sublime Security
Open detection-as-code with a real free tier.
sublime.securitySee full entry in Abnormal Security vs Proofpoint vs Mimecast: 11 Best Email Security Software 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.