---
description: Side-by-side comparison of ALTOSPAM vs Microsoft Defender for Office 365. Learn more about each of the product's price, features, and see the most comprehensive reviews for UK business users.
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title: ALTOSPAM vs Microsoft Defender for Office 365 Comparison - Capterra UK 2026
---

Breadcrumb: [Home](/) > [Business Continuity Software](/directory/30206/business-continuity/software) > [ALTOSPAM \<span\>vs\</span\> Microsoft Defender for Office 365](https://www.capterra.co.uk/compare/176264/219685/altospam/vs/microsoft-defender-for-office-365)

# Compare ALTOSPAM vs Microsoft Defender for Office 365

Canonical: https://www.capterra.co.uk/compare/176264/219685/altospam/vs/microsoft-defender-for-office-365

> Detailed comparison between ALTOSPAM 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 | ALTOSPAM | Microsoft Defender for Office 365 |
| **Overall rating** | 4.8/5 | 4.6/5 |
| **Total Reviews** | 73 | 235 |
| **Starting Price** | €9.00 | - |
| **Free Trial** | Yes | No |
| **Free Version** | Yes | - |
| **Deployment** | Cloud, SaaS, Web-based | Cloud, SaaS, Web-based |
| **Support** | Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support, 24/7 (Live rep), Chat | - |
| **Training** | In Person, Live Online, Webinars, Documentation, Videos | Live Online, Webinars, Documentation, Videos |

## Best for

### ALTOSPAM

Our target audience is the SME / ETI between 100 and 5000 users. However, our solution is aimed at all types of companies or associations, whatever their size.

### 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

### ALTOSPAM

- Alerts/Escalation
- Allow/Block List
- Anti Spam
- Email Attachment Protection
- Email Filtering
- Email Monitoring
- Email Routing
- Encryption
- Filtering
- Greylisting
- Monitoring
- Phishing Protection
- Reporting/Analytics
- SURLB/URIBL Filtering
- Spam Analysis
- Spam Blocker
- Spam Detection
- Spam Quarantine
- Threat Protection
- Whitelisting/Blacklisting

### Microsoft Defender for Office 365

- Alerts/Escalation
- Allow/Block List
- Anti Spam
- Email Attachment Protection
- Email Filtering
- Email Routing
- Filtering
- Greylisting
- Phishing Protection
- Reporting/Analytics
- SURLB/URIBL Filtering
- Spam Blocker
- Spam Detection
- Spam Quarantine
- Threat Protection
- Whitelisting/Blacklisting

## Links

- [View ALTOSPAM Profile](https://www.capterra.co.uk/software/176264/altospam)
- [View Microsoft Defender for Office 365 Profile](https://www.capterra.co.uk/software/219685/microsoft-defender-for-office-365)
- [View Original Comparison](https://www.capterra.co.uk/compare/176264/219685/altospam/vs/microsoft-defender-for-office-365)

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