Turn off Postgrey for 1 domain?

[NetworkExpertise]

Here is the output of the log files that help me determine this is a postgrey issue:

Jul 1 08:39:42 netxweb01 postfix/smtpd[30773]: NOQUEUE: reject: RCPT from adsl-75-51-129-101.dsl.pltn13.sbcglobal.net[75.51.129.101]: 450 4.7.1 <jason@this_is_my_customer.com>: Recipient address rejected: Greylisted, see http://isg.ee.ethz.ch/tools/postgrey/hel....com.html; from=<Carol@this_is_the_person_sending_to_my_customer.com> to=<jason@this_is_my_customer.com> proto=ESMTP helo=<this_is_the_person_sending_to_my_customer.com>