> -----Original Message-----
>In Exim 4, I use this in the RCPT ACL:
>
> # "Rumplestiltskin attack" rejection -- after the
fifth bad recipient,
> # the connection is dropped.
> drop condition = ${if >{$rcpt_fail_count}{5}{1}{0}}
> message = Too many bad recipients.
Thanks for replying. Do you know if this would work in
an intermediary system? One that forwards email to
another system and does not have the actual users'
home directories?
If not, is it possible to do it via searching a
database of valid users or some other method?
Thanks,
Guru
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