On Aug 2, 2006, at 11:55 AM, <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> wrote:

Dave,
As a receiver I would like to know who sent the message, who signed the message and any further information that might allow me to assign a spam score accurately for further edge processing.

Who signed the message is evident by the DKIM signature. Valuable information would be whether this signature is "authoritative" for the 2822.From domain or whether the SMTP client adding DKIM signatures is "authoritative" for the domain. Information related to what is or is not used offer less value, and may become a means to deny or disrupt service.

-Doug

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