---
description: Get a quick and detailed side-by-side comparison for Microsoft Defender for Office 365 vs Stalwart. GetApp will help you learn more about each of these software benefits and disadvantages.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/getapp/og_logo-94fd2a03a6c7a0e54fc0c9e21a1c0ce9.png
title: Microsoft Defender for Office 365 vs Stalwart Comparison | GetApp Australia 2026
---

Breadcrumb: [Home](/) > [Anti-spam Software](/directory/1019/anti-spam/software) > [Microsoft Defender for Office 365 \<span\>vs\</span\> Stalwart](https://www.getapp.com.au/compare/2054932/2083156/microsoft-defender-for-office-365/vs/stalwart)

# Compare Microsoft Defender for Office 365 vs Stalwart

Canonical: https://www.getapp.com.au/compare/2054932/2083156/microsoft-defender-for-office-365/vs/stalwart

> Detailed comparison between Microsoft Defender for Office 365 and Stalwart. 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 | Stalwart |
| **Overall rating** | 4.6/5 | - |
| **Total Reviews** | 235 | 0 |
| **Starting Price** | - | USD 2.40 |
| **Free Trial** | No | Yes |
| **Free Version** | - | Yes |
| **Deployment** | Cloud, SaaS, Web-based | Cloud, SaaS, Web-based, Windows (On-Premise), Linux (On-Premise) |
| **Support** | - | Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support, Chat |
| **Training** | Live Online, Webinars, Documentation, Videos | In Person, Live Online, Documentation |

## Key features

### Microsoft Defender for Office 365

- Alerts/Escalation
- Email Attachment Protection
- Email Filtering
- Email Routing
- Filtering
- Phishing Protection
- Policy Management
- Real-Time Monitoring
- Reporting/Analytics
- SURLB/URIBL Filtering
- Spam Blocker
- Spam Quarantine
- Threat Protection
- Threat Response
- Whitelisting/Blacklisting

### Stalwart

- AI/Machine Learning
- API
- Alerts/Escalation
- Anomaly/Malware Detection
- Email Attachment Protection
- Email Filtering
- Encryption
- Phishing Protection
- Real-Time Monitoring
- Reporting/Analytics
- SURLB/URIBL Filtering
- Spam Analysis
- Spam Blocker
- Spam Quarantine
- Threat Protection
- Threat Response
- Whitelisting/Blacklisting

## Links

- [View Microsoft Defender for Office 365 Profile](https://www.getapp.com.au/software/2054932/microsoft-defender-for-office-365)
- [View Stalwart Profile](https://www.getapp.com.au/software/2083156/stalwart)
- [View Original Comparison](https://www.getapp.com.au/compare/2054932/2083156/microsoft-defender-for-office-365/vs/stalwart)

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