It's an Analogy Son, an Ananalogy. Thanks for the link. The issue is
how do disparate systems agree on how to talk to one another, declare
reasonably enforced rules and abide by them. According to many here a
SYN does not need to be followed by a ACK but perhaps a SWIFTY is
perfectly reasonable and should be understood and enacted upon by both
parties.
Bill Oxley
Messaging Engineer
Cox Communications, Inc.
Alpharetta GA
404-847-6397
bill(_dot_)oxley(_at_)cox(_dot_)com
-----Original Message-----
From: John L [mailto:johnl(_at_)iecc(_dot_)com]
Sent: Saturday, August 05, 2006 1:13 AM
To: Oxley, Bill (CCI-Atlanta)
Cc: ietf-dkim(_at_)mipassoc(_dot_)org
Subject: RE: [ietf-dkim] SSP requirements
How does the post office do it? It receives mail from other countries
and determines what kind of stamps official franking etc to either
deliver or return to sender unopened.
International postal mail is one of the worst possible analogies for
Internet mail. It's a closed system consisting of only 190 post
offices,
each of which is a national monopoly. All the security is at the
perimeter, i.e., when you mail a letter to England, the USPS checks that
the stamp is real, but when the USPS hands it to RM, RM assumes it's OK.
There's a complex settlement scheme to share postage revenue when the
bilateral flow of mail is unbalanced which has no online equivalent,
thank
goodness.
And, of course, there's no identity security at all on postal mail. I
can
write "Bill Oxley" as the return address on a letter, mail it, and no
post
office will notice or care.
Although it is completely irrelevant to Internet mail, the international
postal system, which goes back to the 1870s, and its history are quite
interesting. See http://www.upu.int.
DKIM is an electronic stamp, SSP (to me) appears to be the franking
system.
This is so wrong I don't know where to start.
R's,
John
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