--- formencode/validators.py	2007-04-01 00:06:43.000000000 +0300
+++ formencode/validators.py	2007-10-01 19:30:53.000000000 +0300
@@ -1230,8 +1230,10 @@
         if self.resolve_domain:
             assert have_dns, "pyDNS should be available"
 	    try:
-                a=DNS.DnsRequest(domain).req().answers
-                dnsdomains=[x['data'] for x in a if x['typename'] in ('A', 'MX')]
+                a=DNS.DnsRequest(domain, qtype='mx').req().answers
+                if not a:
+                    a=DNS.DnsRequest(domain, qtype='a').req().answers
+                dnsdomains=[x['data'] for x in a]
 	    except (socket.error, DNS.DNSError), e:
 		raise Invalid(
 		    self.message('socketError', state, error=e),