Messages from invalid domains

I'm getting messages which are From invalid domains, such as
newsvrbnrdbcv.madnessclicks.com. A DNS query shows that
the NS for
madnessclicks.com doesn't respond:

madnessclicks.com.      172800  IN      NS     
ns1.clickstardaily.com.
madnessclicks.com.      172800  IN      NS     
ns2.clickstardaily.com.
;; Received 128 bytes from 192.5.6.30#53(A.GTLD-SERVERS.NET)
in 132 ms

;; connection timed out; no servers could be reached

I would like to eliminate mail from such domains. I found
the option
g_badfrom_noip and have enabled it. From the description, it
sounds like
that would do the trick, but despite restarting Surgemail
mail from
these domains keeps arriving.

I enabled g_log_dns and here is what I see:

26 09:32:45.00:Info:1088613296: dns: mx lookup que 0:
madnessclicks.com.
26 09:32:45.00:Info:1088613296: dns_stats[0] ORBS lookup
madnessclicks.com.
26 09:32:45.00:Info:1088613296: dns:  mx
start(0,madnessclicks.com.,16,1) txt
26 09:33:01.00:Info:1088613296: dns: bk_timeout timedout 16
26 09:33:01.00:Info:1088613296: dns: (199.104.81.3) mx
lookup failed timedout 16 0
26 09:33:01.00:Info:1088613296: dns_stats2[0] 16 seconds,
Failed, ORBS madnessclicks.com.
26 09:33:01.00:Info:1088613296: dns: Timeout so closing dns
mx channel 0
26 09:33:01.00:Info:1088613296: dns: fail madnessclicks.com.
1 1
26 09:33:01.00:Info:1088613296: dns: timedout but timeout
less than 20 seconds so not switching
26 09:33:01.00:Info:1088613296: dns: [0] result was
madnessclicks.com = ()
26 09:33:01.00:Info:1088613296: dns: Total lookup time 16
seconds, (madnessclicks.com) ()

Or for a completely made up domain:

26 09:40:42.00:Info:1089768368: from_bl, domain
(asdflkjfdsalk.com) fooasdflkjfdsalk.com
26 09:40:42.00:Info:1089768368: dns: mx lookup que 0:
asdflkjfdsalk.com.
26 09:40:42.00:Info:1089768368: dns_stats[0] ORBS lookup
asdflkjfdsalk.com.
26 09:40:42.00:Info:1089768368: dns:  mx
start(0,asdflkjfdsalk.com.,16,1) txt
26 09:40:42.00:Info:1089768368: dns: Question:
asdflkjfdsalk.com., type=10, class=1
26 09:40:42.00:Info:1089768368: *** Warning *** dns No
address for asdflkjfdsalk.com.
26 09:40:42.00:Info:1089768368: dns: (199.104.81.3) mx
lookup failed Nothing outstanding so finished 0
26 09:40:42.00:Info:1089768368: dns_stats2[0] 0 seconds,
Failed, ORBS asdflkjfdsalk.com.
26 09:40:42.00:Info:1089768368: dns: fail asdflkjfdsalk.com.
1 1
26 09:40:42.00:Info:1089768368: dns: [0] result was
asdflkjfdsalk.com = (invalid_domain1)
26 09:40:42.00:Info:1089768368:
send_translate_done(dns_failed_lookup)
26 09:40:42.00:Info:1089768368: dns: Total lookup time 0
seconds, (asdflkjfdsalk.com) (dns_failed_lookup)

Despite those errors, why to I get "250 Command MAIL
OK"?

Corey