Mimecast vs Sublime Security
Side-by-side from the Top 11 ranking of Top 11 Email Security Software. Last verified July 4, 2026.
The short answer
Mimecast ranks higher on Top 11 (#3 vs #11) for IT and security leaders. Security bundled with archiving and outage continuity.
At a glance
| Mimecast | Sublime Security | |
|---|---|---|
| Top 11 rank | #3 / Top 11 Email Security Software | #11 / Top 11 Email Security Software |
| Score (out of 9.4) | 8.9 | 7.9 |
| Best for | Best for security plus archiving and continuity | Best for detection-as-code control |
| Pricing | $$ (roughly $4 to $9 per user per month) | $ (free community tier, paid plans custom) |
| HQ | London, UK | Washington, D.C., USA |
| Founded | 2003 | 2020 |
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.