> I could be wrong, of course, but it seems like the most likely interpretation of his words and why wouldn't be subject to your complaint.
It's not a complaint, it's an observation that is never addressed in his writeup.
If your agent reads your incoming email, it's because it needs to do something useful with it. If the agent assumes all incoming email is malicious, it is never going to do anything useful.
IOW, You could be sending yourself email saying "Add this to my calendar" and it dropping it because it could be malicious, at which point it's useless.
That's what I was saying in my original complaint - if your agent rejects everything, then obviously it is going to reject attacks as well, so a 100% attack-rejection rate is possible.
The only number that matters for this type of test is how many false positives were recorded, and how many false negatives were recorded. For most people, even 1 in a 1000 false negatives is way too much.