Why Isn't M365 Performing DMARC Lookup on Spoofed Emails?
I've been dealing with a frustrating issue where we've received phishing emails that are spoofing our domain. The sender shows a null sender (MAIL FROM: ), and for…
anti-phishing
Why Are Spoofed Emails Getting Through My M365 Anti-Phishing Filters?
I've got a tenant with M365's anti-phishing features enabled, but I'm still seeing emails that appear to be spoofed ending up in users' inboxes. When I check the…