spf-discuss
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Re: The New SPF: introducing RFROM

2004-05-24 12:58:24
On Sun, 2004-05-23 at 08:59, Justin Mason wrote:
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BTW, if we're talking about a new piece of SMTP-time data to be recorded,
can we change that from a "Resent-Sender" header, which will be
overwritten at each hop, and use a "(resent-sender <....>)" extension to
the existing Received header?

  Well, although it's specified as a SHOULD in the RFC (2822), these
headers are not supposed to be overwritten, but instead, a new set
should be added for every hop.
  But, given that's it's a SHOULD, I expect there are some MTAs and/or
MUAs out there that take SHOULDs as IWONTs ;-)
--
-Paul Iadonisi
 Senior System Administrator
 Red Hat Certified Engineer / Local Linux Lobbyist
 Ever see a penguin fly?  --  Try Linux.
 GPL all the way: Sell services, don't lease secrets