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

Breadcrumb: [Home](/) > [Anti-spam Software](/directory/30996/anti-spam/software) > [Microsoft Defender for Office 365 \<span\>vs\</span\> SpamKill](https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill)

# Compare Microsoft Defender for Office 365 vs SpamKill

Canonical: https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill

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

-----

## At a Glance

| Metric | Microsoft Defender for Office 365 | SpamKill |
| **Overall rating** | 4.6/5 | 5.0/5 |
| **Total Reviews** | 235 | 1 |
| **Starting Price** | - | US$20,00 |
| **Free Trial** | No | Yes |
| **Free Version** | - | No |
| **Deployment** | Cloud, SaaS, Web-based | Cloud, SaaS, Web-based |
| **Support** | - | Email/Help Desk, FAQs/Forum, Knowledge Base |
| **Training** | Live Online, Webinars, Documentation, Videos | Documentation |

## 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

### SpamKill

Digital agencies managing client websites, marketing teams generating leads through web forms, and sales teams tired of fake inquiries polluting their CRM systems.

## Key features

### Microsoft Defender for Office 365

- Access Controls/Permissions
- Alerts/Escalation
- 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
- Real-Time Monitoring
- Reporting/Analytics
- Spam Blocker
- Spam Detection

### SpamKill

- Activity Tracking
- Allow/Block List
- Authentication
- Filtering
- Monitoring
- Reporting/Analytics
- Spam Blocker
- Spam Detection

## Links

- [View Microsoft Defender for Office 365 Profile](https://www.capterra.co.za/software/219685/microsoft-defender-for-office-365)
- [View SpamKill Profile](https://www.capterra.co.za/software/1051128/spamkill)
- [View Original Comparison](https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill)

-----

## Structured Data

<script type="application/ld+json">
  {"@context":"https://schema.org","@graph":[{"name":"Compare Microsoft Defender for Office 365 vs SpamKill - Capterra South Africa 2026","description":"Compare Microsoft Defender for Office 365 vs SpamKill. Learn more about each of the software’s price, features, and helpful software reviews for South African business users.","url":"https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill","about":[{"@id":"https://www.capterra.co.za/software/219685/microsoft-defender-for-office-365#software"},{"@id":"https://www.capterra.co.za/software/1051128/spamkill#software"}],"breadcrumb":{"@id":"https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill#breadcrumblist"},"@type":["WebPage","CollectionPage"],"@id":"https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill#webpage","isPartOf":{"@id":"https://www.capterra.co.za/#website"},"inLanguage":"en-ZA","publisher":{"@id":"https://www.capterra.co.za/#organization"}},{"name":"Microsoft Defender for Office 365","description":"Microsoft Defender for Office 365 protects all of Office 365 against advanced threats like business email compromise and credential phishing, and automatically investigates and remediates attacks. With Defender for O365 you get Integrated threat protection for all of Office 365 that gives you:\n-Native protection for Office 365\n-Industry leading AI and automation\n-A comprehensive approach","image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductScreenshot/1c527075-d5f8-40a2-94c7-0f88006f5693.jpeg","url":"https://www.capterra.co.za/software/219685/microsoft-defender-for-office-365","@type":"SoftwareApplication","@id":"https://www.capterra.co.za/software/219685/microsoft-defender-for-office-365#software","applicationCategory":"BusinessApplication","publisher":{"@id":"https://www.capterra.co.za/#organization"},"aggregateRating":{"@type":"AggregateRating","ratingValue":4.6,"bestRating":5,"ratingCount":235},"operatingSystem":"Cloud"},{"name":"SpamKill","description":"Stop fake leads and spam submissions from polluting your CRM—without frustrating CAPTCHAs. SpamKill uses machine learning, device fingerprinting, and behavioral analysis to block spam with 99.9% accuracy while maintaining seamless user experience.\nUnlike traditional bot blockers that add friction, SpamKill works invisibly. Legitimate customers complete forms effortlessly while bots get stopped cold. Perfect for agencies managing multiple sites, marketing teams tired of junk leads, and sales teams wasting time on fakes.\nProven across 100+ million submissions, SpamKill integrates with WordPress, major CRMs, and marketing platforms. Real-time scoring blocks spam before it reaches your inbox.\nBuilt by former automation engineers who used to build bots—now we stop them. Get cleaner data, save hours weekly, and protect your marketing ROI with enterprise-grade protection that's simple to deploy and invisible to users.","url":"https://www.capterra.co.za/software/1051128/spamkill","@type":"SoftwareApplication","@id":"https://www.capterra.co.za/software/1051128/spamkill#software","applicationCategory":"BusinessApplication","publisher":{"@id":"https://www.capterra.co.za/#organization"},"aggregateRating":{"@type":"AggregateRating","ratingValue":5.0,"bestRating":5,"ratingCount":1},"offers":{"price":"20","@type":"Offer","priceCurrency":"USD"},"operatingSystem":"Cloud"},{"@type":"BreadcrumbList","itemListElement":[{"name":"Home","position":1,"item":"/","@type":"ListItem"},{"name":"Anti-spam Software","position":2,"item":"/directory/30996/anti-spam/software","@type":"ListItem"},{"name":"Microsoft Defender for Office 365 vs SpamKill","position":3,"item":"https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill","@type":"ListItem"}],"@id":"https://www.capterra.co.za/compare/219685/1051128/microsoft-defender-for-office-365/vs/spamkill#breadcrumblist"}]}
</script>