Hello,
With the new release 2.8.0, in main.cf, I have : # # PostScreen # #postscreen_blacklist_networks = cidr:/etc/postfix/rules/blacklist postscreen_blacklist_action = drop #postscreen_whitelist_networks = $mynetworks postscreen_acces_list = cidr:/etc/postfix/rules/blacklist, permit_mynetworks postscreen_greet_wait = ${stress?2}${stress:6}s postscreen_greet_action = enforce postscreen_dnsbl_threshold = 2 postscreen_dnsbl_sites = zen.dnsbl*2, cbl.abuseat.org*2, z.mailspike.net*2, bl.spamcop.net*1, b.barracudacentral.org*1 postscreen_dnsbl_reply_map = texthash:/etc/postfix/dnsbl_reply postscreen_dnsbl_action = enforce but postconf -n | grep postscreen gives : postscreen_blacklist_action = drop postscreen_dnsbl_action = enforce postscreen_dnsbl_reply_map = texthash:/etc/postfix/dnsbl_reply postscreen_dnsbl_sites = zen.dnsbl*2, cbl.abuseat.org*2, z.mailspike.net*2, bl.spamcop.net*1, b.barracudacentral.org*1 postscreen_dnsbl_threshold = 2 postscreen_greet_action = enforce postscreen_greet_wait = ${stress?2}${stress:6}s and postconf | grep postscreen gives : postscreen_access_list = permit_mynetworks postscreen_bare_newline_action = ignore postscreen_bare_newline_enable = no postscreen_bare_newline_ttl = 30d postscreen_blacklist_action = drop postscreen_blacklist_networks = postscreen_cache_cleanup_interval = 12h postscreen_cache_map = btree:$data_directory/postscreen_cache postscreen_cache_retention_time = 7d postscreen_client_connection_count_limit = $smtpd_client_connection_count_limit postscreen_command_count_limit = 20 postscreen_command_filter = postscreen_command_time_limit = ${stress?10}${stress:300}s postscreen_disable_vrfy_command = $disable_vrfy_command postscreen_discard_ehlo_keyword_address_maps = $smtpd_discard_ehlo_keyword_address_maps postscreen_discard_ehlo_keywords = $smtpd_discard_ehlo_keywords postscreen_dnsbl_action = enforce postscreen_dnsbl_reply_map = texthash:/etc/postfix/dnsbl_reply postscreen_dnsbl_sites = zen.dnsbl*2, cbl.abuseat.org*2, z.mailspike.net*2, bl.spamcop.net*1, b.barracudacentral.org*1 postscreen_dnsbl_threshold = 2 postscreen_dnsbl_ttl = 1h postscreen_enforce_tls = $smtpd_enforce_tls postscreen_expansion_filter = $smtpd_expansion_filter postscreen_forbidden_commands = $smtpd_forbidden_commands postscreen_greet_action = enforce postscreen_greet_banner = $smtpd_banner postscreen_greet_ttl = 1d postscreen_greet_wait = ${stress?2}${stress:6}s postscreen_helo_required = $smtpd_helo_required postscreen_non_smtp_command_action = drop postscreen_non_smtp_command_enable = no postscreen_non_smtp_command_ttl = 30d postscreen_pipelining_action = enforce postscreen_pipelining_enable = no postscreen_pipelining_ttl = 30d postscreen_post_queue_limit = $default_process_limit postscreen_pre_queue_limit = $default_process_limit postscreen_reject_footer = $smtpd_reject_footer postscreen_tls_security_level = $smtpd_tls_security_level postscreen_use_tls = $smtpd_use_tls postscreen_watchdog_timeout = 10s postscreen_whitelist_networks = $mynetworks What's wrong with postscreen_access_list ? -- Pascal