postfix - disable spamassassin for outgoing mail

[alexus]

how would i disable spamassassin for outgoing emails?

# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.5 (Santiago)
# rpm -q postfix spamassassin
postfix-2.6.6-6.el6_5.x86_64
spamassassin-3.3.1-3.el6.x86_64
#