Spam to this list

Andrew Gideon c172driver99820 at
Tue Apr 19 16:17:21 GMT 2005

Paul Slootman wrote:

> There's a difference between giving a 5xx response during SMTP, and
> first accepting a message and then later bouncing it to the (supposed)
> envelope sender. I believe spamcop is protesting the latter, not the
> first. I agree with them. 20% of the junk I get are bogus bounces.

For good or ill, SMTP is a store-and-forward mechanism.  The node in the
process of delivering to the node which issues the rejection is no longer
in a position to issue its own rejection.  Instead, it must send a separate
"bounce" message to the - claimed, unfortunately - sender.

 - Andrew

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