Is yammer.com legit or a scam?
Yammer.com is a legitimate Microsoft enterprise-communication platform; user complaints stem from notification spam, not domain compromise or scam activity.
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.
MT Intelligence
Yammer is a well-established enterprise social network launched in 2008 and acquired by Microsoft for $1.2 billion in 2012. The domain is now the official home of Microsoft Viva Engage, part of the Microsoft 365 suite. Our antivirus network reports zero malicious detections across 92 engines, and the domain carries a clean reputation score. The SSL certificate is valid and issued by Microsoft Corporation. User complaints in the evidence package relate to unwanted emails and notifications from the service itself—users receiving spam-like group invitations or romance-scam content posted within groups—not to phishing, malware, or domain compromise. Independent trust aggregators rate the site as legitimate with a trust score of 100. The domain is widely used by Fortune 500 companies for internal communication.
Web Research Findings
Our live research agent queries scam-report databases, consumer-review sites, news coverage, and general web search for yammer.com, then cross-checks business-registration records and look-alike domain patterns. Everything below is pulled from what it actually found.
- yammer.com is the original domain for Yammer, an enterprise social network launched in 2008 and acquired by Microsoft in 2012 for $1.2 billion.
- It has been rebranded and evolved into Microsoft Viva Engage, part of the Microsoft 365 / Viva suite for internal company communication.
- Scamadviser reports a trust score of 100/100 and considers the site legitimate and safe.
- User complaints primarily relate to unwanted spam-like notifications and emails from notifications@yammer.com or noreply@yammer.com, sometimes mislabeled as "scam network" due to romance scam content in groups.
- Some users initially mistake legitimate Yammer/Viva Engage emails for phishing and recommend manually typing yammer.com to verify.
- WHOIS protected via MarkMonitor (Microsoft's registrar); no public individual owner details.
- No evidence of phishing, malware, or scam family association for the domain itself; widely used by enterprises including Fortune 500 companies.
- Microsoft Q&Aopen
"I am getting dozens of yammer emails suddenly, all romance scams. ... why is Microsoft opting people in to this scam network by default"
- devhut.netopen
"Yammer the SPAMmer ... invited to join some new group on a website called Yammer (yammer.com) by people I have never heard of before."
Yammer, Inc. acquired by Microsoft in 2012 for $1.2 billion; now part of Microsoft 365 / Viva Engage. Registered via MarkMonitor.
Our research found 2 user complaints and 2 positive reviews. Complaints on Microsoft Q&A and community forums describe unwanted emails and group invitations, with some users initially mistaking legitimate Yammer notifications for phishing or scams. However, these complaints relate to the service's notification behavior, not to domain compromise or fraud. Independent trust aggregators and Wikipedia confirm that Yammer is a legitimate enterprise social network acquired by Microsoft in 2012 and now rebranded as Microsoft Viva Engage, part of Microsoft 365. No evidence of phishing, malware, or scam-family association was found for the domain itself.
Antivirus Engines
Security Scans
Checked against the major public blocklists used by browsers and security tools — no hits.
Contact Verification
We fetched the page and looked for real-world contact details. Legitimate businesses almost always publish an email on their own domain, a phone number, and a postal address. Scam shops usually don't.
- No contact email found anywhere on the page.
- No phone number listed on the page.
- No postal address visible on the page.
Domain & Encryption
Redirect Chain
- 1301http://yammer.com/
- 2302https://www.yammer.com/cross-domain
- 3200https://engage.cloud.microsoft/main/feedcross-domain
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 yammer.com and not a lookalike like y-ammer.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.
Referenced Domains
Outbound domains this page links to or loads resources from. Each links to its own security scan.
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 yammer.com. The site appears legitimate based on the signals we checked, but always stay alert for phishing emails that spoof real domains.
- yammer.com passed our automated security checks with a trust score of 94/100. No antivirus engines or major blacklists flagged the site at the time of the last scan.
- Yes. yammer.com presents a valid TLSv1.3 certificate issued by Microsoft Corporation · Microsoft TLS G2 RSA CA OCSP 10, expiring in 171 days. Note that SSL only encrypts the connection — it does not guarantee that the site itself is trustworthy.
- No. All 92 antivirus engines in our malware network report yammer.com as clean.
- No. yammer.com is not currently listed on the major browser blocklist feeds that modern browsers use.
- yammer.com resolves to an IP operated by Microsoft Corporation in US (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.
- Yes. yammer.com sits in the global top-100k on Cloudflare Radar, which means it has substantial real-world traffic. That does not automatically make it safe, but established brands almost always rank here and throwaway scam domains almost never do.
- This is a permanent record of the scan run on June 10, 2026. The verdict and evidence above reflect that scan and do not change on their own. If circumstances around yammer.com have changed, MalwareTips staff can run a fresh scan, which re-runs every check from scratch and publishes an updated report.
User reviews & comments(0)
Share your experience — "Lost $200 on a fake checkout" is more useful than "Scam". Your review helps others avoid traps.