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Head-to-head · Email Security Gateways

Mimecast Secure Email Gateway vs Libraesva Email Security

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Mimecast Secure Email Gateway #6 in Email Security Gateways 8.7/10 Pricing on request ✓ 5 of 5 features Visit Mimecast
Libraesva Email Security #7 in Email Security Gateways 8.6/10 Pricing on request · 30-day trial Free trial✓ 5 of 5 features Visit Libraesva

Mimecast Secure Email Gateway leads on 0 checks, Libraesva Email Security on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMimecast Secure Email Gateway · 8.7/10
  • Free trialonly Libraesva Email Security

Mimecast Secure Email Gateway scores higher on our rubric for email security gateways: 8.7 against 8.6 out of 10; our editors rank them #6 and #7.

On deployment model, Libraesva Email Security gives you Hybrid where Mimecast Secure Email Gateway offers Cloud.

Mimecast Secure Email Gateway is the better fit for mature all-around email protection. Libraesva Email Security is the better fit for hybrid deployments with advanced analysis.

  • Mimecast Secure Email Gateway fits best

    Mature all-around email protection

  • Libraesva Email Security fits best

    Hybrid deployments with advanced analysis

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Mimecast Secure Email Gateway 8.7/10 Visit ↗ Libraesva Email Security 8.6/10 Visit ↗
At a glance
Editor score 8.7 8.6
Ranking #6 in Email Security Gateways #7 in Email Security Gateways
Best for Mature all-around email protection Hybrid deployments with advanced analysis
Pricing model Paid Paid
Starting price — Pricing on request · 30-day trial
Free plan — —
Free trial — 30 days
Deployment Cloud Cloud, Self-hosted
Platforms Web Web
Integrations 5 integrations 7 integrations
Features Mimecast Secure Email Gateway 5/5 · Libraesva Email Security 5/5
Outbound filtering ✓ ✓
Impersonation protection ✓ ✓
Malware sandboxing ✓ ✓
Microsoft 365 support ✓ ✓
Google Workspace support ✓ ✓
Specs
Deployment model Cloud Hybrid
Our review
Pros
  • Scans inbound, outbound, and internal email
  • Combines BEC protection, sandboxing, URL analysis, and DLP
  • Integrates with Microsoft 365, Google Workspace, and security platforms
  • Semantic and behavioral AI address deception and account-takeover risks.
  • Inbound and outbound scanning includes URL and attachment analysis.
  • Supports Microsoft 365, Google Workspace, legacy protocols, SIEM, and hybrid deployment.
Cons
  • Pricing requires contact with sales
  • No free plan is offered
  • Its broad control set may exceed simpler email-security needs
  • Pricing requires contacting sales for a quote.
  • There is no free plan.
  • Its broad security scope may exceed simpler email-filtering needs.
Our verdict

Mimecast Secure Email Gateway is a cloud-based email security service for organizations using Microsoft 365, Google Workspace, on-premises, or hybrid email environments. It inspects inbound, outbound, and internal messages with layered…

Read the review →

Libraesva Email Security is an email security gateway for organizations protecting inbound and outbound mail against phishing, malware, business email compromise, impersonation, account takeover, spam, and malicious URLs. It combines…

Read the review →
  1. Mimecast Secure Email GatewayEmail Security Gateways 8.7Pricing on request
  2. Libraesva Email SecurityEmail Security Gateways 8.6Pricing on request · 30-day trial

Strengths and trade-offs

  • Mimecast Secure Email Gateway — where it wins

    • Scans inbound, outbound, and internal email
    • Combines BEC protection, sandboxing, URL analysis, and DLP
    • Integrates with Microsoft 365, Google Workspace, and security platforms

    Where it doesn't

    • Pricing requires contact with sales
    • No free plan is offered
    • Its broad control set may exceed simpler email-security needs

  • Libraesva Email Security — where it wins

    • Semantic and behavioral AI address deception and account-takeover risks.
    • Inbound and outbound scanning includes URL and attachment analysis.
    • Supports Microsoft 365, Google Workspace, legacy protocols, SIEM, and hybrid deployment.

    Where it doesn't

    • Pricing requires contacting sales for a quote.
    • There is no free plan.
    • Its broad security scope may exceed simpler email-filtering needs.
  • Mimecast Secure Email Gateway8.7/10 · Pricing on request

    A broad email security gateway for organizations needing layered protection and policy control.

    Visit MimecastFull verdict →
  • Libraesva Email Security8.6/10 · Pricing on request · 30-day trial

    A broad email gateway for organizations needing advanced inbound and outbound threat analysis.

    Visit LibraesvaFull verdict →

More comparisons

All email security gateways comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update