Consider the domain szco.com
$ host -t txt szco.com
;; no records
$ host -t type99 szco.com
;; connection timed out; no servers could be reached
Obviously, the DNS for szco.com is braindead. However, this is an
important customer of my client, and they are unlikely to fix their DNS
server in the next 10 years. So I have to work around the braindamage
someway. What do people think about this tweak to checking for both TXT
and SPF:
check for TXT record
if no TXT SPF record:
try:
check for type99 SPF record
except DNSTimeout:
pretend there were no type99 SPF records either
--
Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flamis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.