---
description: Side-by-side comparison of Microsoft Defender for Office 365 vs Heimdal Email Security. Learn more about each of the product's price, features, and see the most comprehensive reviews for UK business users.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/capterra/og_logo-e5a8c001ed0bd1bb922639230fcea71a.png?auto=format%2Cenhance%2Ccompress
title: Microsoft Defender for Office 365 vs Heimdal Email Security Comparison - Capterra UK 2026
---

Breadcrumb: [Home](/) > [Anti-spam Software](/directory/30996/anti-spam/software) > [Microsoft Defender for Office 365 \<span\>vs\</span\> Heimdal Email Security](https://www.capterra.co.uk/compare/219685/1029022/microsoft-defender-for-office-365/vs/heimdal-email-security)

# Compare Microsoft Defender for Office 365 vs Heimdal Email Security

Canonical: https://www.capterra.co.uk/compare/219685/1029022/microsoft-defender-for-office-365/vs/heimdal-email-security

> Detailed comparison between Microsoft Defender for Office 365 and Heimdal Email Security. Check ratings, reviews, pricing, and features to make the best decision for your business.

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## At a Glance

| Metric | Microsoft Defender for Office 365 | Heimdal Email Security |
| **Overall rating** | 4.6/5 | 5.0/5 |
| **Total Reviews** | 235 | 1 |
| **Starting Price** | - | - |
| **Free Trial** | No | Yes |
| **Free Version** | - | No |
| **Deployment** | Cloud, SaaS, Web-based | Cloud, SaaS, Web-based, Windows (On-Premise) |
| **Support** | - | Email/Help Desk, FAQs/Forum, Knowledge Base |
| **Training** | Live Online, Webinars, Documentation, Videos | Live Online, Webinars, Documentation, Videos |

## Best for

### Microsoft Defender for Office 365

DevOps and Security Operations (SecOps) teams&#10;Security engineering teams&#10;IT teams&#10;CISOs and CTOs&#10;Red, Blue, and Purple Teams&#10;CSIRT \&amp; forensic team&#10;Microsoft 365 administrators

### Heimdal Email Security

Ideal for resellers, MSSPs, and any organizations seeking cutting-edge protection and seamless integration. Heimdal’s cybersecurity solutions work standalone or as part of a unified XDR platform.

## Key features

### Microsoft Defender for Office 365

- Access Controls/Permissions
- Allow/Block List
- Anti Spam
- Email Attachment Protection
- Email Filtering
- Email Routing
- Filtering
- Greylisting
- Microsoft Outlook Integration
- Phishing Protection
- Policy Management
- Real-Time Monitoring
- Reporting/Analytics
- Spam Blocker
- Spam Detection
- Spam Quarantine
- Threat Protection
- Threat Response
- Whitelisting/Blacklisting

### Heimdal Email Security

- Access Controls/Permissions
- Allow/Block List
- Anti Spam
- Email Attachment Protection
- Email Filtering
- Encryption
- Filtering
- Greylisting
- Microsoft Outlook Integration
- Phishing Protection
- Policy Management
- Real-Time Monitoring
- Reporting/Analytics
- Spam Blocker
- Spam Detection
- Spam Quarantine
- Threat Protection
- Threat Response
- Whitelisting/Blacklisting

## Links

- [View Microsoft Defender for Office 365 Profile](https://www.capterra.co.uk/software/219685/microsoft-defender-for-office-365)
- [View Heimdal Email Security Profile](https://www.capterra.co.uk/software/1029022/heimdal-email-security)
- [View Original Comparison](https://www.capterra.co.uk/compare/219685/1029022/microsoft-defender-for-office-365/vs/heimdal-email-security)

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