We should stick stamps on emails just because it's cute.
Do we need more stamps when the attachments are larger? And/or is it more about the distance (hops) of travel?
The stamps on a received mail should get semi-transparant post marks for each hop from the respective server. Could be generated from the mail header info.
Can't wait for bouncing mails because there weren't enough stamps on it :D
But serious question: where would I "inject" my stamp generation on the mail process? Would need to be a client plugin or something like that, I guess?
@bleeptrack just another header? The the mailclient (or a plugin) can decide on what to do with it