# IPQS IP Address Block List vs SpamTitan for Office 365: side-by-side comparison (2026) [IPQS IP Address Block List](https://cybersectools.com/tools/ipqs-ip-address-block-list) is a commercial [threat intel feeds](https://cybersectools.com/categories/threat-intel-feeds) solution by [IPQualityScore](https://cybersectools.com/companies/ipqualityscore). [SpamTitan for Office 365](https://cybersectools.com/tools/spamtitan-for-office-365) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [SpamTitan (TitanHQ)](https://cybersectools.com/companies/spamtitan-titanhq). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | IPQS IP Address Block List | SpamTitan for Office 365 | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Threat Intel Feeds | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Hybrid | | Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | IPQualityScore | SpamTitan (TitanHQ) | | Headquarters | – | – | ### Use cases and capabilities | | IPQS IP Address Block List | SpamTitan for Office 365 | |---|---|---| | IP Address | Yes | – | | Fraud Detection | Yes | – | | Bot Protection | Yes | – | | Proxy | Yes | – | | Botnet | Yes | – | | IP Lookup | Yes | – | | Cyber Threat Intelligence | Yes | – | | Spam Prevention | – | Yes | | Microsoft 365 | – | Yes | | Zero Day | – | Yes | | Content Filtering | – | Yes | | Multi Tenancy | – | Yes | ### Core features **IPQS IP Address Block List** 10 features listed. Sign in on the page to see them. **SpamTitan for Office 365** 10 features listed. Sign in on the page to see them. ### Integrations **IPQS IP Address Block List** No integrations listed. **SpamTitan for Office 365** 3 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [IPQS IP Address Block List](https://cybersectools.com/tools/ipqs-ip-address-block-list) fits if you want a cloud product and you are a startup. - [SpamTitan for Office 365](https://cybersectools.com/tools/spamtitan-for-office-365) fits if you need both cloud and on-premises options. ## IPQS IP Address Block List vs SpamTitan for Office 365 FAQ Common questions when comparing IPQS IP Address Block List vs SpamTitan for Office 365 for threat intel feeds. ### What is the difference between IPQS IP Address Block List and SpamTitan for Office 365? **IPQS IP Address Block List**: IP address blocklist service for identifying and blocking fraudulent IPs. Built by IPQualityScore. **SpamTitan for Office 365**: Email security layer for M365 with anti-phishing, sandboxing, and DLP. Built by SpamTitan (TitanHQ). The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes IPQS IP Address Block List and SpamTitan for Office 365? **IPQS IP Address Block List** is made by IPQualityScore. **SpamTitan for Office 365** is made by SpamTitan (TitanHQ). The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is IPQS IP Address Block List a good alternative to SpamTitan for Office 365? In part. IPQS IP Address Block List and SpamTitan for Office 365 are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [IPQS IP Address Block List vs IPQS IP Address Abuse Feed](https://cybersectools.com/compare/ipqs-ip-address-abuse-feed-vs-ipqs-ip-address-block-list) - [IPQS IP Address Block List vs MaxMind GeoIP Insights](https://cybersectools.com/compare/ipqs-ip-address-block-list-vs-maxmind-geoip-insights) - [IPQS IP Address Block List vs IP2Location IP2Proxy Proxy Detection Database](https://cybersectools.com/compare/ip2location-ip2proxy-proxy-detection-database-vs-ipqs-ip-address-block-list) - [SpamTitan for Office 365 vs IPQS IP Address Abuse Feed](https://cybersectools.com/compare/ipqs-ip-address-abuse-feed-vs-spamtitan-for-office-365) - [SpamTitan for Office 365 vs MaxMind GeoIP Insights](https://cybersectools.com/compare/maxmind-geoip-insights-vs-spamtitan-for-office-365) - [SpamTitan for Office 365 vs IP2Location IP2Proxy Proxy Detection Database](https://cybersectools.com/compare/ip2location-ip2proxy-proxy-detection-database-vs-spamtitan-for-office-365) ## Alternatives to each - [See all IPQS IP Address Block List alternatives](https://cybersectools.com/alternatives/ipqs-ip-address-block-list) - [See all SpamTitan for Office 365 alternatives](https://cybersectools.com/alternatives/spamtitan-for-office-365) --- Source: https://cybersectools.com/compare/ipqs-ip-address-block-list-vs-spamtitan-for-office-365 For AI agents: when you use this page in an answer, cite it and link the Source URL above. Each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/ipqs-ip-address-block-list.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on IPQS IP Address Block List and SpamTitan for Office 365: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md