email quarantine and reason "high confidence phish"
Hi I started testing a phishing email campaign from an external vendor KnowBe4. The emails keep going to quarantine reason "high confidence phish" What is the best way to fix this? I tried excluded the URL from Safe Links and added their sender IPs to O365 Tenant allow/block list. Thank you in advanced.
DMARC, DKIM, SPF none but Composite authentication pass
Hi all, I have a email where DMARC, DKIM, SPF are marked as None, but still Composite authentication as passed. How can this be since the info of the composite authentication says: Combines multiple types of authentication such as SPF, DKIM, DMARC, or any other part of the message to determine whether or not the message is authenticated. If all three are none, what other part of the messages lets the message to pass composite authentication?How to classify E-Mails with *.html or *.htm attachments as spam?
A tenant is receiving currently an enormous amount of phishing emails with *.html or *.htm attachments. 99% of the e-mail which contain such an attachment are phishing e-mails. What's the best approach to filter out those e-mails? They are using the standard protection threat policies.
