[TriLUG] postfix spam blocking

[David M.]

When setting up postfix to help curb spam, which is more correct/effective
when specifically addressing RBLs?  OR can this be done in both places in
main.cf to enhance the protection:

smtpd_recipient_restrictions = reject_rbl_client zen.spamhaus.org

OR

smtpd_client_restrictions = reject_rbl_client zen.spamhaus.org

OR

both?

OSX Server puts the setting in the smtpd_client_restrictions via the gui
admin, however some other linux related how-to docs say to use
smtpd_recipient_restrictions.

thanks,
David

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