Send your email right to the other person's spam
Confession. This vaguely reminded me of something (now admittedly, terrible) I did way back in highschool to give myself a bit more time on an assignment: submit a corrupted docx by putting in some random bytes in the file.This would give you time until the teacher would get to grading (and opening) the file at which point you’d hopefully have finished.Learning not to procrastinate as much turned out to be the better life skill.