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

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

Updated Apr 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

Paubox

0.0 (0 reviews)

Paubox provides HIPAA compliant email encryption that allows you to send and receive secure messages directly within your existing email platform without extra steps.

Starting at $30/mo
Free Trial 14 days

Quick Comparison

Feature Mimecast Paubox
Website mimecast.com paubox.com
Pricing Model Custom Subscription
Starting Price Custom Pricing $30/month
FREE Trial ✓ 30 days free trial ✓ 14 days free trial
Free Plan ✘ No free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas mobile saas mobile
Integrations Microsoft 365 Google Workspace Salesforce Splunk ServiceNow Okta CrowdStrike Palo Alto Networks Rapid7 Microsoft Sentinel Google Workspace Microsoft 365 Microsoft Exchange Salesforce HubSpot Zendesk
Target Users mid-market enterprise small-business mid-market enterprise
Target Industries healthcare
Customer Count 0 0
Founded Year 2003 2015
Headquarters London, UK San Francisco, 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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Paubox

Paubox solves the complexity of HIPAA compliant communication by encrypting your emails automatically in the background. Unlike traditional secure email portals that require passwords or extra logins, you can compose and send messages from your familiar inbox on any device. This approach ensures your protected health information stays secure while maintaining a smooth experience for both your staff and your patients.

You can integrate the solution with Google Workspace, Microsoft 365, or Microsoft Exchange to achieve seamless encryption for every outbound message. Beyond basic encryption, the platform provides advanced threat protection to defend your organization against phishing, malware, and executive spoofing. It is designed specifically for healthcare providers who need to balance strict regulatory compliance with daily operational efficiency.

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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Paubox Features

  • Zero-Step Encryption. Send HIPAA compliant emails from your existing inbox without requiring your recipients to use passwords or portals.
  • Inbound Security. Protect your team from advanced threats like phishing, ransomware, and display name spoofing with automated scanning.
  • DLP Tools. Prevent sensitive data leaks by setting custom rules that automatically block or quarantine unauthorized outgoing information.
  • Email API. Integrate secure email capabilities directly into your own applications or web portals using a developer-friendly REST API.
  • Marketing Automation. Send personalized, HIPAA compliant marketing emails to your patient lists while maintaining full data privacy and security.
  • ExecProtect. Stop business email compromise attacks that specifically target your leadership team with patented display name protection.

Pricing Comparison

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Mimecast Pricing

P

Paubox Pricing

Standard
$30
  • HIPAA compliant encryption
  • Zero-step user experience
  • Works with Google & Microsoft
  • HITRUST CSF Certified
  • Business Associate Agreement (BAA)
  • Standard email support

Pros & Cons

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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

Paubox

Pros

  • Eliminates the need for patient portals
  • Works seamlessly with existing email providers
  • High delivery rates for encrypted messages
  • Simple setup process for IT teams
  • HITRUST certification provides peace of mind

Cons

  • Higher price point than basic filters
  • Minimum user requirements for some plans
  • Limited customization for automated notifications
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