Sam Varshavchik <mr...@courier-mta.com> wrote:
>
>Let me guess: you're trying to bounce something from a locally-executed
>mail  
>delivery script, after a message is accepted for delivery.
Actually the scenario is rather simple: John Doe sends me an email (from his 
Gmail account) using his locally installed MUA and ticks "delivery status 
notification". No fancy automated processing is done at my end when receiving 
his email that has DSN request set -- maildrop simply puts the message into my 
inbox.

>You should Google "backscatter bounce bomb".
Interesting, thanks.

>Courier discards bounces to external addresses of mail received from  
>external addresses, in order to prevent you from being blacklisted due
>to  
>being used as a proxy mailbomb source.
I don't fully get it. How do others (Gmail, Outlook, my university's mta) 
handle this? They do issue DSNs when requested.

Best regards,
Bernd
-- 
Sent from Kaiten Mail. Please excuse my brevity.

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