Comparison Guide

Avanan vs Mimecast

Avanan and Mimecast both protect business email, but use fundamentally different architectures. Mimecast is a traditional Secure Email Gateway, while Avanan uses API-based inline scanning for deeper M365 integration.

Side-by-Side Comparison

Feature	Avanan	Mimecast
Architecture	API-based inline scanning	Secure Email Gateway (SEG)
MX Record Change	Not required	Required
Internal Email Scanning	Yes	No (inbound only)
Email Archiving	Via M365 retention	Built-in archiving
Email Continuity	Via M365 redundancy	Built-in continuity
Incident Response	Included CIRT service	Not included

Our Verdict

Avanan provides better protection for Microsoft 365 environments through API integration that catches internal threats and BEC attacks that traditional gateways miss. Mimecast remains a solid choice for organizations needing email archiving and continuity features.

Unio Digital recommends: More effective for M365 with API-based inline scanning

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Frequently Asked Questions

For M365-centric environments, Avanan provides better threat detection through API integration. Choose Mimecast if you need built-in email archiving and continuity features beyond what M365 provides.

Learn More About Email Security

Visit our comprehensive Email Security page for detailed information about our capabilities and approach.

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