johan schröder cggcjohnnyeu hello yes use check_relay_domains permit_mynetworks smtpd_recipient_restrictions part postfix workstart without commands regards j schroeder mouss schrieb johan schröder wrote hello ive got problem current postfix configuration definied several domains using relay_domains incoming mail accepted works problem following part configuration smtpd_recipient_restrictions check_relay_domains reject_rbl_client zenspamhausorg reject_unknown_reverse_client_hostname reject_rbl_client work ignored use check_relay_domains postfix work server configuration error dont use check_relay_domains use check_relay_domains reject_rbl_client command want incoming mail specified domains accepted checked using rbl lists smtpd_recipient_restrictions reject_unauth_destination reject_rbl_client fri 08 aug 2008 030448 0100 problems postfix configuration check_relay_domains reject_rbl_client