ietf-mxcomp
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RE: When spoofing is.

2004-03-20 06:55:52

From:owner-ietf-mxcomp(_at_)mail(_dot_)imc(_dot_)org; on behalf of; 
            Mark C. Langston [mark(_at_)bitshift(_dot_)org]
Reply-To: Mark C. Langston [mark(_at_)bitshift(_dot_)org]

I was thinking about envelope-from but yes, this is true as well.

Why would this be anyone other than the postcard site?

What use if made of envelope from by the MUA or MTA in any case?
At the moment it appears to be completely unnecessary.


What part of that do you think Grandma will have a problem with?

From:postcards(_at_)crummypostcards(_dot_)com; on behalf of; little jimmy
[jimmy(_at_)bitshift(_dot_)org]
Reply-To: little jimmy [jimmy(_at_)bitshift(_dot_)org]

Which still doesn't make sure it _is_ little jimmy sending the card.
If envelope-from is set to postcards(_at_)crummypostcards(_dot_)com, that 
domain
will have to deal with bounces, not jimmy(_at_)bitshift(_dot_)org

This is especially important if jmimy can't speel.

cheers,
Alex



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