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Best Secure Email Gateway (SEG) Solutions

What is Secure Email Gateway (SEG)?

Secure Email Gateway (SEG) solutions mindshare

As of May 2026, in the Secure Email Gateway (SEG) category, the mindshare of Proofpoint Email Protection is 19.5%, down from 22.3% compared to the previous year. The mindshare of Mimecast Email and Collaboration Threat Protection is 15.9%, up from 11.3% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 17.0%, down from 29.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Proofpoint Email Protection19.5%
Microsoft Defender for Office 36517.0%
Mimecast Email and Collaboration Threat Protection15.9%
Other47.6%
Secure Email Gateway (SEG)

Top Secure Email Gateway (SEG) products

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Find out what your peers are saying about Microsoft, Proofpoint, Mimecast and others in Secure Email Gateway (SEG). Updated: April 2026.
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892,487 professionals have used our research since 2012.

Secure Email Gateway (SEG) experts

Pavan Ingaleshwar - PeerSpot reviewer
Soc Analyst at a consultancy with 11-50 employees
Vivek_Jaiswal - PeerSpot reviewer
Cyber Security Senior Specialist at a tech vendor with 10,001+ employees
KamranBhatti - PeerSpot reviewer
Network Engineer at a computer software company with 11-50 employees
Sachin Vinay - PeerSpot reviewer
Assistant Manager-Networks at a university with 1,001-5,000 employees
Yonas Abebe - PeerSpot reviewer
Senior Network and Security Engineer at Symbol Technologies PLC
Phakedi Mphela - PeerSpot reviewer
IT Project Manager at Brilliant telecommunications
Amey Darekar - PeerSpot reviewer
Personal Banker at HDFC Bank
reviewer2809476 - PeerSpot reviewer
Technical Account Manager at a computer software company with 11-50 employees

Secure Email Gateway (SEG) Q&As

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Secure Email Gateway (SEG) FAQ

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