On 2023-04-09 21:14, Wietse Venema via Postfix-users wrote:
tom--- via Postfix-users:
I have this setting in main.cf:

smtpd_recipient_restrictions =
    permit_mynetworks,
    permit_sasl_authenticated,
    reject_unauth_destination,
    check_policy_service unix:private/policyd-spf,
    reject_rbl_client zen.spamhaus.org,
    reject_rbl_client bl.spamcop.net

When I sent message from a Spamhaus Zen listed IP (this IP not in my
whitelist), the message still came into system.
it seems    reject_rbl_client zen.spamhaus.org has no effect.
Where should i debug it?

By studying Postfix documentation?

http://www.postfix.org/SMTPD_ACCESS_README.html#lists

    Each restriction list is evaluated from left to right until
    some restriction produces a result of PERMIT, REJECT or DEFER
    (try again later). The end of each list is equivalent to a
    PERMIT result.

In your case, reject_rbl_client was NOT USED because permit_mynetworks,
permit_sasl_authenticated, or check_policy_service returned a PERMIT
result.

        @Wietse
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Thank you for your support. I am studying what code is returned by policyd-spf.
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