[Mimedefang] OT Sendmail bad addresses

[Button, Shawn]

We throttle invalid address attempts:

define(`confBAD_RCPT_THROTTLE', `3')dnl

But we are seeing more and more the same tactic used across multiple
e-mails (1 per bad address) from the same mail server over about a 5
second interval.

Is there another option that we could use to throttle or dump if we
receive a number of bad addresses from the same mail server or IP?

Thanks,

Shawn