Darktrace vs Mimecast vs Defender
Darktrace Antigena Email (AGE) is different than your traditional gateway tools, whether that be Mimecast, Defender, Proofpoint, Barracuda where they will sit in line and handle more of the archiving and almost the initial spam filtering.
AGE creates a journaling rule within the email platform. So let’s say that’s O365, those more sophisticated threats or the account hijacking and spoofing attacks of the world, etc. that might bypass the traditional tools, had action taken upon them.