Error trying to Postmap a Hash file

I'm following the instructions (at least I'm trying to) in "Frontline Spam_Defense_for_Mail_in_Mac_OSX.pdf" to restrict the
faking of my IP or domain names.

I added these lines to main.cf :

smtpd helorequired = yes
smtpd helorestrictions = permit saslauthenticated, permit_mynetworks,
check heloaccess hash:/etc/postfix/helo_access, reject non_fqdnhostname,
reject invalidhostname, permit

Then I created the file /etc/postfix/helo_access and added these contents
to the helo_access file:


xxx.yyy.zzz.xxx REJECT You are not me.
mydomain.com REJECT You are not me.
(with extra lines for my additional domains)

The problem is when I attempt to "postmap" the Hash file.

I type the commmand "sudo postmap /etc/postfix/helo_access" and I get:

myserver:~ root# sudo postmap /etc/postfix/helo_access
postmap: fatal: /etc/postfix/main.cf, line 659: missing '=' after attribute name: "check heloaccess hash:/etc/postfix/helo_access, reject non_fqdnhostname, "


Can anyone tell what I'm doing wrong?

Thanks!
Keith