But at that point, the victim already feels like they screwed up by missing an email last week, and now they feel indebted to the attacker. "They feel like they owe me. Then I can say, 'while we are on the phone right now, is it OK if I resend it to you? Can you go ahead and just do this one thing?"
I'm immune to this one. Don't send me a fucking email if it's something important. Email can wait. Email can always wait. Email is a filing system for details that are only ever useful when someone says "did you get that email?"
I don't feel indebted, I feel annoyed that you expect me to have read your email and have it memorised for whenever it is you may show up to test me on the hyper-contextual trivialities it contained.
Always say you didn't get the email when someone asks, and do it with an unrepentant attitude; put them on the back foot. If you've got the time and mental space to recall random emails from x minutes, hours, days in the past, then you probably need to re-evaluate how you prioritise your time and tasks.
(This has been true for me for at least a decade. People still get horrified at my number of unread emails. I pity them and the time they spend curating their inbox - I'd rather get shit done or use my free time on literally anything else)