eur01.safelinks.protection.outlook.com
Category: Misc
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Description of eur01.safelinks.protection.outlook.com
eur01.safelinks.protection.outlook.com appears to be a subdomain within Microsoft's Outlook infrastructure, likely used for Safe Links URL protection in email and collaboration products. Safe Links services typically rewrite and inspect links clicked from messages so destinations can be checked before a user is redirected, which aligns with the domain naming and the business/collaboration-related classifications in the scan data.
Based on the domain structure, hosting details, and certificate ownership, this endpoint appears to be operated within Microsoft's cloud environment rather than as an independent public-facing business website. The categories assigned by multiple web-classification providers suggest general business or office-collaboration use rather than retail, entertainment, or consumer marketplace activity.
Safety Assessment for eur01.safelinks.protection.outlook.com
Scan results show limited negative findings at the time of this scan. One out of 91 security engines flagged the domain, while the malware scan reported no detected threats and major threat-database checks did not indicate phishing or malware distribution. One blacklist-style entry marked the domain with a generic suspicious-object label, but this appears to be a low-confidence heuristic signal rather than broad consensus across security sources.
Additional context reduces concern: the domain is very old, uses a valid certificate issued to Microsoft Corporation, is hosted on Microsoft infrastructure, and is categorized by multiple web-classification providers as business or collaboration related. No external links, referenced domains, iframes, or flagged files were identified in the available scan output. Based on available scan data, no significant threats were detected at the time of this scan, although the isolated engine flag means some caution may still be appropriate.
Technical Description
The domain uses a valid SSL/TLS certificate associated with Microsoft Corporation, with expiry shown as 2026-11-27. It resolves to an IP address hosted by Microsoft Corporation in Washington, United States, and the reported web server is Microsoft-HTTPAPI/2.0. The nameservers are Azure DNS hosts, which is consistent with Microsoft's cloud infrastructure.
DNSSEC is enabled and signed, which may help protect against certain DNS tampering scenarios. No DNS-based blocklist hits were reported in the provided data, and the scan did not identify suspicious linked resources or embedded iframes at the time of analysis.
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