Mimecast vs Smarsh Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated May 2026 8 min read

Mimecast

0.0 (0 reviews)

Mimecast provides an advanced cloud-based security platform designed to protect your organization from email-borne threats, data loss, and downtime while ensuring continuous communication and simplified compliance management.

Starting at --
Free Trial 30 days
VS

Smarsh

0.0 (0 reviews)

Smarsh provides cloud-based archiving and compliance solutions that help you capture, retain, and monitor digital communications to meet strict regulatory requirements and manage corporate risk effectively.

Starting at --
Free Trial NO FREE TRIAL

Quick Comparison

Feature Mimecast Smarsh
Website mimecast.com smarsh.com
Pricing Model Custom Custom
Starting Price Custom Pricing Custom Pricing
FREE Trial ✓ 30 days free trial ✘ No free trial
Free Plan ✘ No free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas mobile cloud saas
Integrations Microsoft 365 Google Workspace Salesforce Splunk ServiceNow Okta CrowdStrike Palo Alto Networks Rapid7 Microsoft Sentinel Microsoft Teams Slack Zoom Salesforce LinkedIn WhatsApp Bloomberg Webex Box Twitter
Target Users mid-market enterprise mid-market enterprise
Target Industries financial-services government healthcare
Customer Count 0 0
Founded Year 2003 2001
Headquarters London, UK Portland, USA

Overview

M

Mimecast

Mimecast is a comprehensive email security and management platform that protects your business from sophisticated cyberattacks. You can defend your inbox against phishing, ransomware, and impersonation attempts using its AI-powered threat intelligence. Beyond just blocking threats, the platform ensures your email remains functional even during server outages, allowing you to maintain business continuity without interruption.

You can also use the platform to automate data retention and compliance. It provides a centralized cloud archive where you can securely store, search, and retrieve historical communications for legal or regulatory needs. Whether you are a mid-sized company or a global enterprise, the software integrates with your existing Microsoft 365 or Google Workspace environment to create a more resilient digital workplace.

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Smarsh

Smarsh helps you manage the complex world of digital communications compliance by capturing data across more than 100 channels. Whether your team uses email, instant messaging, social media, or mobile text, you can automatically archive every interaction in a search-ready, immutable format. This ensures you stay compliant with regulations from bodies like FINRA, SEC, and FCA while protecting your organization from legal and reputational risks.

You can streamline your oversight process using AI-powered discovery and automated review tools that flag potential policy violations in real-time. The platform is built for highly regulated industries like financial services, government, and healthcare, providing a centralized workspace where legal and compliance teams can collaborate on audits and investigations without manual data gathering.

Overview

M

Mimecast Features

  • Email Security Cloud Gateway Block malicious attachments and URLs before they reach your network using deep content inspection and real-time threat intelligence.
  • Internal Email Protect Detect and remediate threats originating from within your organization to stop the lateral spread of malware or phishing.
  • Mailbox Continuity Keep your employees sending and receiving emails during a primary mail server outage with an automated failover system.
  • Cloud Archive Store all your business communications in a secure, encrypted repository that allows you to perform lightning-fast searches for e-discovery.
  • Awareness Training Reduce human error by launching engaging security videos and phishing simulations to educate your staff on modern cyber risks.
  • DMARC Analyzer Protect your brand reputation by preventing unauthorized parties from sending fraudulent emails using your company's domain name.
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Smarsh Features

  • Multi-Channel Capture. Capture content from over 100 communication channels including Microsoft Teams, Slack, Zoom, and mobile text messages automatically.
  • Enterprise Archive. Store your data in a secure, immutable cloud environment that keeps records indexed and ready for instant search.
  • Discovery Workbench. Speed up legal reviews by searching across all archived content simultaneously with advanced filtering and tagging tools.
  • Automated Supervision. Set up custom policies to automatically flag high-risk communications and reduce the time spent on manual message review.
  • Mobile Communication Monitoring. Capture business-related texts and voice calls on personal or corporate devices while maintaining employee privacy for personal data.
  • AI-Powered Insights. Use machine learning to identify sentiment and behavioral patterns that might indicate fraud or policy breaches before they escalate.

Pricing Comparison

M

Mimecast Pricing

S

Smarsh Pricing

Pros & Cons

M

Mimecast

Pros

  • Highly effective at blocking sophisticated phishing and impersonation attacks
  • Seamless integration with Microsoft 365 and Google Workspace environments
  • Reliable email continuity ensures zero downtime during server maintenance
  • Powerful search capabilities within the cloud archiving feature
  • Granular policy controls allow for highly customized security rules

Cons

  • Initial configuration and setup can be complex for beginners
  • The administrative interface has a steep learning curve
  • Pricing is generally higher than basic built-in security tools
A

Smarsh

Pros

  • Extensive support for a wide variety of modern communication apps
  • Powerful search functionality handles massive datasets with high speed
  • Reliable automated capture ensures no gaps in regulatory records
  • Intuitive interface for legal teams performing complex eDiscovery tasks

Cons

  • Initial configuration and implementation can be time-consuming
  • Pricing is high compared to basic storage-only solutions
  • Occasional delays in indexing during high-volume data spikes
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