spf-discuss
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RE: [spf-discuss] Re: Forwarder whitelisting counter-proposal: SPF "i-am=" modifier

2008-01-09 08:05:31
On Wed, 9 Jan 2008, Mark wrote:
[ Frank Ellerman wrote: ]
I'm positive that some MSAs support AUTH :-)

As parameter to the MAIL command?? We're not talking
the SMTP verb "AUTH" (RFC 2554) here.

AUTH= as MAIL FROM parameter has indeed been in RFC #2554 all along, even
if no one is using it.

From RFC #2554:
# 3. The Authentication service extension
# [...]
#    (4) a new SMTP verb "AUTH" is defined
#
#    (5) an optional parameter using the keyword "AUTH" is added to the
#       MAIL FROM command, and extends the maximum line length of the
#       MAIL FROM command by 500 characters.

---- Michael Deutschmann <michael(_at_)talamasca(_dot_)ocis(_dot_)net>

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