WebHowever, when a test email was sent, it still reports compauth=fail reason=601 and gets quarantined by our anti-phishing policy as a spoof email. Looking at MX Toolbox, it reports the following: Check to DMARC Compliant (No DMARC Record Found) Problem with SPF Alignment. Check to SPF Authenticated. Check to DKIM Alignment. WebJul 17, 2024 · Here are the steps to configure the Exchange rule to reject such inbound emails: in “Apply this rule if…” dropdown select “A message header …” and choose “includes any of these words”. in “specify words or phrases” box type dmarc=fail action=oreject and add. then, in “Do the following…” dropdown select “Block the ...
Transport rule for authenticated sender - Microsoft Community Hub
WebAug 4, 2024 · Sruthyy. replied to Gunter Danzeisen. Oct 11 2024 09:56 PM. If you haven't configured SPF, DKIM, and DMARC for your domain, Microsoft will handle it by applying the composite authentication or compauth for your domain. But, they recommend us to configure these authentication methods manually for each custom domains. WebJan 31, 2024 · To check whether the ARC result was used to override a DMARC failure, look for compauth result and a reason of code ... See the last entry in this header-block to find compauth and reason. Authentication-Results: spf=fail (sender IP is 51.163.158.241) smtp.mailfrom=contoso.com; dkim=fail (body hash did not verify) … quotes for smiling baby
alot of users getting spam - Microsoft Community Hub
WebLocate the Authentication-results header and the compauth= and reason= tags. Messages classified by Microsoft as spoofed display a compauth=fail result. ... Correspond to various internal codes for why a message passed implicit authentication, or had no authentication but no action was applied. 6xx: WebStarting February 1, 2024, cloud storage used across Microsoft 365 apps and services includes Outlook.com attachments data and OneDrive data. For more information, please click here.. To learn about the various storage plans available, please click here. WebBut we have an mail message that is in our 365 Quarantine. I copied the message header and ran it through MS's Message Analyzer. Now, the email is coming from a known vendor of ours, but the analyzer results I see that stand out are: Received-SPF None (protection.outlook.com: thevendor.com does not designate permitted sender hosts) shirt citizens