Burke, Thomas G. said:

> I guess that would be a DOS, though, and therefore unethical, huh?

I wouldn't consider it a DOS, it is their system initiating the
connection. If you REJECT a message that should not generate any
additional messages from your server, but it may generate one on
the remote side. the REJECT comes during the time that the remote
system is trying to transmit the message, not after the message
has already been accepted(generally).

and if both mail servers behave right, the reject message should
start with a 550 which tells the remote server not to try to deliver
that message again. Though in my experience few(if any?) servers
seem to follow this.

there's one user on this list which triggers my server-side rejects
and I get about 500 rejects a week from redhat. I keep meaning
to add that email address to the regex whitelist but haven't gotten
around to it yet.

nate








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