Proofpoint vs Mimecast

Side-by-side from the Top 11 ranking of Top 11 Email Security Software. Last verified July 4, 2026.

The short answer

Proofpoint ranks higher on Top 11 (#2 vs #3) for IT and security leaders. Full gateway plus DLP and encryption for regulated firms.

At a glance

ProofpointMimecast
Top 11 rank#2 / Top 11 Email Security Software#3 / Top 11 Email Security Software
Score (out of 9.4)98.9
Best forBest for regulated enterprise gatewaysBest for security plus archiving and continuity
Pricing$$$ (custom, per-user enterprise pricing)$$ (roughly $4 to $9 per user per month)
HQSunnyvale, USALondon, UK
Founded20022003

Proofpoint

Full gateway plus DLP and encryption for regulated firms.

www.proofpoint.com

See full entry in Top 11 Email Security Software

Mimecast

Security bundled with archiving and outage continuity.

www.mimecast.com

See full entry in Top 11 Email Security Software

Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.