Email is not supposed to be necessarily near real time, I think (not an expert though). Not sure of the details at the protocol level, but my guess is that it m

Email is not supposed to be necessarily near real time, I think (not an expert though). Not sure of the details at the protocol level, but my guess is that it may work differently from HTTP, due to being older, and invented in the time of UUCP, IBM email, etc., some of which involved store-and-forward techniques, mail queue files, etc. (I've used UUCP email back in the day, at one company I worked at. We used to have to dial up the other city's modem and then go through a slightly arcane dance of Unix commands to send the email on its way, or receive email from other branch offices. Fun times ... When it first became available, I remember using it a good amount to download tech articles from various sites via Internet-over-email methods, such as ftp to rtfm.mit.edu via email :) There was even a chapter about that in a Dummies book. And there's an Internet FAQ about it at faqs.org, or there was.