Tony Finch wrote:
Actually, greet_pause is nowadays for detecting bad clients with
excessively short timeouts. Bad clients stopped sending all smtp
commands in one go about two years ago.
That's not my experience. We use a greet_pause of only 5 seconds, and
we still get quite a few:
"rejecting commands from xxxx [a.b.c.d] due to pre-greeting traffic after 0
seconds"
in our logs.
Regards,
David.