It is easily to select some filetypes to block for inbound email in an Exchange Online anti-malware policy. But what if the filetype you want to block is not listed? I will explain in this post how to block them.

It is easily to select some filetypes to block for inbound email in an Exchange Online anti-malware policy. But what if the filetype you want to block is not listed? I will explain in this post how to block them.
Keep SPF fails away from the user’s junk folder!