This isn’t nearly the worst of it, either. Can I voluntarily have my mail (that isn’t from a person in my contacts list / whitelist) placed in an escrow? I’m fine with that. If after 2 hours, with the rest of the mail that came in, it doesn’t look like a piece of spam, send it along.
With all the spam they must get, they could probably knock the escrow window down to 5 or 10 minutes and still be just as effective.
It’s like tape-delay of a broadcast to protect us from the horrors of profanity… except I want protection from spamity.