enable auth_debug_passwords=yes

[Chris Stankevitz]

The wiki suggest that I "enable auth_debug_passwords=yes" [1].  How do I 
do that?

a) echo "auth_debug_passwords=yes" >> /usr/local/etc/postfix/main.cf

b) echo "auth_debug_passwords=yes" >> /usr/local/etc/postfix/master.cf

c) [something else]

I'm using 2.11.7 on FreeBSD 10.1

Thank you,

Chris

[1] http://wiki.dovecot.org/WhyDoesItNotWork