Dave Evans pisze: > This is fine, but ONLY if you send the message to the correct person, which is
> usually NOT <$sender_address>. Alas in most environments you won't know who
> to send it to!
>
> Do NOT automatically send messages to <$sender_address>! Well of course that would generate mostly backscatter (or "collateral
spam" if that's the correct term for this trick used by spammers). I
meant SMTP time which should be safe regarding no backscatter.
