Mimecast Email Security vs N-able Mail Assure

Mimecast Email Security7.5Visit NAN-able Mail Assure7.4Visit

Higher score Mimecast Email Security #4 in Email Anti-Spam Software 7.5/10 Pricing on request · 30-day trial ✓ 3 of 3 features Visit Mimecast

vs

NA N-able Mail Assure #5 in Email Anti-Spam Software 7.4/10 Pricing on request · 30-day trial ✓ 0 of 3 features Visit N-able

• Mimecast Email Security fits best

  Enterprises wanting mature secure email infrastructure

• N-able Mail Assure fits best

  MSPs managing multiple protected mail environments

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Side by side

Feature	Mimecast Email Security 7.5/10 Visit ↗	NAN-able Mail Assure 7.4/10 Visit ↗
At a glance
Editor score	7.5	7.4
Ranking	#4 in Email Anti-Spam Software	#5 in Email Anti-Spam Software
Best for	Enterprises wanting mature secure email infrastructure	MSPs managing multiple protected mail environments
Pricing model	Paid	Paid
Starting price	Not published	Not published
Free plan	—	—
Free trial	—	—
Free trial length	30 days · no card needed	30 days
Deployment	Cloud	Cloud
Platforms	Web	Web
Integrations	300+ integrations	2 integrations
Features Mimecast Email Security 3/3 · N-able Mail Assure 0/3
Phishing detection	✓ (best)	Not published
Malware scanning	✓ (best)	Not published
Attachment scanning	✓ (best)	Not published
Specs
Quarantine access	User_and_admin	Not published
Supported mail platforms	Microsoft 365, Google Workspace, on-premises and hybrid email	Not published
Quarantine retention	Not published	Not published
Deployment type	Cloud_gateway	Not published
Our review
Pros	AI detection covers phishing, BEC, anomalies, malicious URLs, and attachments Supports Microsoft 365, Google Workspace, on-premises, and hybrid email Integrates with CrowdStrike, Okta, Splunk, and Microsoft Sentinel	Filters inbound and outbound email with machine learning and threat intelligence Combines continuity, encrypted archiving, quarantine, and authentication controls Supports multitenant management, Microsoft 365, Google Workspace, and an API
Cons	Pricing requires contacting sales No perpetual free plan is offered Plan differences require comparing continuity, backup, and collaboration features	Pricing requires contacting sales rather than selecting a published numeric plan The 30-day offer is a trial, not a perpetual free plan Cloud deployment may not suit organizations requiring an on-premises model
Our verdict	Mimecast Email Security is a cloud-based email protection service for organizations using Microsoft 365, Google Workspace, on-premises, or hybrid email. It targets teams that need centralized controls for phishing, business email… Read the review →	N-able Mail Assure is a cloud-based email security service designed primarily for managed service providers and their customers. It filters inbound and outbound email against spam, malware, phishing, ransomware, spoofing, and other… Read the review →

Strengths and trade-offs

• Mimecast Email Security — where it wins

  • AI detection covers phishing, BEC, anomalies, malicious URLs, and attachments
  • Supports Microsoft 365, Google Workspace, on-premises, and hybrid email
  • Integrates with CrowdStrike, Okta, Splunk, and Microsoft Sentinel

  Where it doesn't

  • Pricing requires contacting sales
  • No perpetual free plan is offered
  • Plan differences require comparing continuity, backup, and collaboration features

• N-able Mail Assure — where it wins

  • Filters inbound and outbound email with machine learning and threat intelligence
  • Combines continuity, encrypted archiving, quarantine, and authentication controls
  • Supports multitenant management, Microsoft 365, Google Workspace, and an API

  Where it doesn't

  • Pricing requires contacting sales rather than selecting a published numeric plan
  • The 30-day offer is a trial, not a perpetual free plan
  • Cloud deployment may not suit organizations requiring an on-premises model

• Mimecast Email Security7.5/10 · Pricing on request · 30-day trial

  A broad email-security suite for organizations protecting complex mail environments.

  Visit MimecastFull verdict →
• NAN-able Mail Assure7.4/10 · Pricing on request · 30-day trial

  A broad, MSP-focused email security service with filtering, continuity, archiving, and multitenant control.

  Visit N-ableFull verdict →