and examining a hulver email header yields this:
Authentication-Results: mta220.mail.re3.yahoo.com from=hulver.co; domainkeys=neutral (no sig)
where 'no sig' means, I think, no domain key.
Does hulvers MTA support domainkeys?
I am not sure what MTA hulver.com uses, but perhaps I am getting ahead of myself. I still don't quite know how email works yet. RFC 822 which I haven't read, has been superceded by RFC 2822 which I also haven't read.
I have Steven's TCP/IP Illustrated in my lap and maybe I'll get around to reading chapter 28.
But then I'll still have more to do yet.
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