---
description: Compare Security Gateway by MDaemon vs Microsoft Defender for Office 365. Learn more about each of the software’s price, features, and helpful software reviews for Irish business users.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/capterra/og_logo-e5a8c001ed0bd1bb922639230fcea71a.png?auto=format%2Cenhance%2Ccompress
title: Security Gateway by MDaemon vs Microsoft Defender for Office 365 Comparison - Capterra Ireland 2026
---

Breadcrumb: [Home](/) > [Email Security Software](/directory/31358/email-security/software) > [Security Gateway by MDaemon \<span\>vs\</span\> Microsoft Defender for Office 365](https://www.capterra.ie/compare/186521/219685/security-gateway-for-email-servers/vs/microsoft-defender-for-office-365)

# Compare Security Gateway by MDaemon vs Microsoft Defender for Office 365

Canonical: https://www.capterra.ie/compare/186521/219685/security-gateway-for-email-servers/vs/microsoft-defender-for-office-365

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

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## At a Glance

| Metric | Security Gateway by MDaemon | Microsoft Defender for Office 365 |
| **Overall rating** | 4.9/5 | 4.6/5 |
| **Total Reviews** | 15 | 235 |
| **Starting Price** | US$1.00 | - |
| **Free Trial** | Yes | No |
| **Free Version** | No | - |
| **Deployment** | Cloud, SaaS, Web-based, Windows (Desktop), Windows (On-Premise) | Cloud, SaaS, Web-based |
| **Support** | Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support, Chat | - |
| **Training** | Live Online, Documentation, Videos | Live Online, Webinars, Documentation, Videos |

## Best for

### Security Gateway by MDaemon

Small to mid-size businesses find that Security Gateway is a perfect fit, while Enterprise organizations like the scalability Security Gateway offers.

### 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

## Key features

### Security Gateway by MDaemon

- Allow/Block List
- Anti Spam
- Data Loss Prevention Software
- Email Attachment Protection
- Email Filtering
- Email Monitoring
- Email Routing
- Encryption
- Filtering
- Greylisting
- Microsoft Outlook Integration
- Monitoring
- Phishing Protection
- Policy Management
- Reporting/Analytics
- Spam Blocker
- Spam Detection
- Spam Quarantine
- Threat Protection
- Whitelisting/Blacklisting

### Microsoft Defender for Office 365

- Allow/Block List
- Anti Spam
- Data Loss Prevention Software
- Email Attachment Protection
- Email Filtering
- Email Routing
- Filtering
- Greylisting
- Microsoft Outlook Integration
- Phishing Protection
- Policy Management
- Reporting/Analytics
- Spam Blocker
- Spam Detection
- Spam Quarantine
- Threat Protection
- Whitelisting/Blacklisting

## Links

- [View Security Gateway by MDaemon Profile](https://www.capterra.ie/software/186521/security-gateway-for-email-servers)
- [View Microsoft Defender for Office 365 Profile](https://www.capterra.ie/software/219685/microsoft-defender-for-office-365)
- [View Original Comparison](https://www.capterra.ie/compare/186521/219685/security-gateway-for-email-servers/vs/microsoft-defender-for-office-365)

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