My personal email account username@outlook.com (i.e., I don't own a domain, so I have restrictions on implementing policy) was recently spoofed (or at least I recently noticed it), to where it appears falsely as being sent from my account to itself.
From the email source, I found out that the message failed DKIM, SPF, DMARC, and was sent through an unauthorized server while in transit.
I would like to do something so that such bogus emails are dismissed by Outlook or otherwise. Outlook settings give you the option of implementing certain rules on emails, but these rules only apply, AFAIK, to headers and email content, rather than content in the source, so I see no way for Outlook to dismiss emails that fail SPF, DKIM, DMARC, and go through an unauthorized server in transit.
Do you know of any other way to implement this rule?
