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Re: SMTP store and forward requires DSN for integrity (was Re:Cluelessanti-virus )

  • From: Edward B. Dreger
  • Date: Sat Dec 10 12:05:15 2005

MS> Date: Sat, 10 Dec 2005 22:54:24 +1100
MS> From: Matthew Sullivan

MS> RFC 2821 states explicitly that once the receiving server has issued a 250
MS> Ok to the end-of-data command, the receiving server has accepted
MS> responsibility for either delivering the message or notifying the sender
MS> that it has been unable to deliver.  RFC2821 also says that a message MUST

And RFC 1034/1035 (I forget which) specifies an RD bit which, in 
reality, is rather useless.

Following RFCs is good for compatibility.  However, RFCs are hardly 
infallible word from on high.  Sometimes they require revisiting and 

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