Anonymvs Cowardvs writes "Well, it looks like after their 20-year reign, RFCs 821 (SMTP) and 822 (mail message format) are history. The replacements, RFCs 2821 and 2822 are available now (2822 was just released). Apparently they reserved the numbers, no cosmic coincidence here."(Read on for more.)
"It's weird. Both 821 and 822 looooong predate my time on the Internet, and you sort of get used to them being as if written in stone. Doesn't look like the changes were too radical -- mostly just catching them up to current practice -- but that's a lot of text that I haven't got through yet and there's surely some gotchas in there. Does your mail client or server (or netnews client, since they use the message format) comply?
And this is the first time that Jon Postel's name has seemed conspicuously absent to me..."