Milter-greylist

Hello,

after succesfully using dnsrbl greylising, the last wave of heavy
spam showed logs where sendmail switched to default:
delivering spam.

Apr 17 16:35:01 mailhost sendmail[27825]: xyz: Milter (greylist): timeout before data read
Apr 17 16:35:01 mailhost sendmail[27825]: xyz: Milter (greylist): to error state

With no dnsrbl racl rule enabled milter-greylist-4.0a1 did not produce that
behaviour any more.

I understand that a DNS lookup may take too long (server not responding ...)
but then it would be nice if I could specify a timeout after
which milter-greylist would continue with the next racl line, and
it would be nice to know which sendmail configuration fits.

Another solution would be to throttle / disable dnsrbl lookups
when these take too long.

Any idea?

Michael Fromme