Is eur01.safelinks.protection.outlook.com legit or a scam?
Official Microsoft security infrastructure used by Outlook and Microsoft 365 to scan and rewrite email links for phishing protection.
Analysis Summary
No threats detected
All checks passed. This site appears legitimate — but always stay alert for phishing even on trusted domains.
Website Preview
Automated page render — captured in a safe sandbox. What an ordinary visitor would see when loading the site. See full visual analysis →
Visual Screenshot Analysis
We capture a fresh screenshot of the live page and ask a vision model to look for scam visual patterns — fake trust badges, countdown timers, overlay pop-ups, and visual clones of legitimate brands.
Visual red flags detected in the screenshot
The screenshot shows a server-side error message, making a visual risk assessment inconclusive.
What our vision model saw
1 signalPage renders a 'Bad Request' error
MT Intelligence
The domain is a verified regional endpoint for Microsoft's Safe Links protection service. It has been registered for over 31 years and is managed by Microsoft Corporation. While one engine from our antivirus network flagged it, this is a false positive likely caused by the domain's role in 'wrapping' links from both safe and unsafe emails. Official documentation confirms this specific URL prefix is used to provide real-time scanning for users. The valid SSL certificate and high-reputation hosting IP further confirm its legitimacy.
Web Research Findings
Our live research agent queries scam-report databases, consumer-review sites, news coverage, and general web search for eur01.safelinks.protection.outlook.com, then cross-checks business-registration records and look-alike domain patterns. Everything below is pulled from what it actually found.
- eur01.safelinks.protection.outlook.com is a regional endpoint (Europe) used by Microsoft's Safe Links feature in Outlook.com, Microsoft 365, and Defender for Office 365.
- Safe Links rewrites original URLs in emails to this prefix for real-time scanning against phishing, malware, and malicious content before redirecting the user.
- Official Microsoft documentation explicitly describes this behavior, including examples with similar prefixes like na01.safelinks.protection.outlook.com and nam01.safelinks.protection.outlook.com.
- The domain has been active for over 31 years (11637 days) and resolves to Microsoft infrastructure (e.g., IPs associated with MICROSOFT-CORP-MSN-AS-BLOCK).
- Users and admins sometimes find the rewritten links confusing or suspicious, leading to support questions, but all sources confirm it is legitimate Microsoft protection.
- No dedicated scam reports, fraud complaints, or negative reviews were found specifically targeting this domain; it is frequently discussed in security forums as a protective measure.
- It can wrap links from both legitimate and spam emails; the wrapper itself does not indicate malice, but the final destination (revealed after click or via decoder tools) should be verified.
- Microsoft Supportopen
"For example, in some messages links might appear longer than usual, and include text such as "na01.safelinks.protection.outlook.com." This is related to the checks we perform to protect you from phishing attacks."
- Microsoft Learnopen
"Scanned URLs are rewritten or *wrapped* using the Microsoft standard URL prefix: `https://<DataCenterLocation>.safelinks.protection.outlook.com` (for example, `https://nam01.safelinks.protection.outlook.com`)."
- Security Stack Exchangeopen
".safelinks.protection.outlook.com is directly from Outlook as a way to make links safer. It is not a corporate phishing simulation."
Operated by Microsoft Corporation as part of Microsoft 365/Defender for Office 365 Safe Links feature
Antivirus Engines
Security Scans
Checked against the major public blocklists used by browsers and security tools — no hits.
Domain & Encryption
Server Reputation
Still, stay alert
No major threat indicators — but a clean scan does not guarantee every page is safe, and phishing emails routinely spoof real domains.
- Double-check the exact URL in your address bar
Confirm you are actually on eur01.safelinks.protection.outlook.com and not a lookalike like e-ur01.safelinks.protection.outlook.com.com or an IDN homoglyph.
- Use a password manager
Password managers only auto-fill on the exact domain they were saved for — they refuse to fill lookalike domains, which is the single best phishing defence.
- OpenDiscuss this site on the forum
If you have first-hand experience with this site — good or bad — share it with the MalwareTips community.
Reputation Sources
How this domain rates across independent threat-intelligence and blocklist providers.
Safety FAQ
Common questions about this site, answered directly from the scan data above — so the answers always reflect the latest verdict on this page.
- Our automated security review found no threat indicators on eur01.safelinks.protection.outlook.com. The site appears legitimate based on the signals we checked, but always stay alert for phishing emails that spoof real domains.
- eur01.safelinks.protection.outlook.com passed our automated security checks with a trust score of 87/100. No antivirus engines or major blacklists flagged the site at the time of the last scan.
- Yes. eur01.safelinks.protection.outlook.com presents a valid TLSv1.3 certificate issued by Microsoft Corporation · Microsoft TLS G2 RSA CA OCSP 04, expiring in 152 days. Note that SSL only encrypts the connection — it does not guarantee that the site itself is trustworthy.
- eur01.safelinks.protection.outlook.com is 31.9 years old, registered on 8/18/1994 through MarkMonitor Inc.. Scam domains are often freshly registered — a site under 6 months old warrants extra caution.
- 1 out of 92 antivirus engines in our malware network flagged eur01.safelinks.protection.outlook.com as malicious or suspicious (1 outright malicious). Even one detection is a meaningful signal.
- No. eur01.safelinks.protection.outlook.com is not currently listed on the major browser blocklist feeds that modern browsers use.
- eur01.safelinks.protection.outlook.com resolves to an IP operated by Microsoft Corporation in CA (usage type: Data Center/Web Hosting/Transit). Hosting location alone doesn't make a site good or bad, but unusual geography for a brand's claimed country is one of many signals we weigh.
- This is a permanent record of the scan run on June 28, 2026. The verdict and evidence above reflect that scan and do not change on their own. If circumstances around eur01.safelinks.protection.outlook.com have changed, MalwareTips staff can run a fresh scan, which re-runs every check from scratch and publishes an updated report.
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