I am quite new to Linux and Postfix. I am trying to configure Postfix in order to receive as less spam as possible. It looks like, I made it too restrictive now, but I don't know why. I installed pflogsumm in order to detect the issues, but stil I don't know, which setting is causing, that "good" emails are rejected. Please, could anybody advice, how to detect, which settings reject rule was applied on which email? My settings are now: smtpd_sender_restrictions = permit_sasl_authenticated permit_mynetworks reject_unknown_sender_domain reject_non_fqdn_sender reject_unlisted_sender reject_unknown_reverse_client_hostname reject_unknown_client_hostname check_sender_access pcre:/etc/postfix/sender_access.pcre permit # Recipient restrictions smtpd_recipient_restrictions = permit_sasl_authenticated permit_mynetworks check_client_access cidr:/etc/postfix/client_checks reject_invalid_hostname reject_unauth_pipelining reject_rbl_client bl.spamcop.net reject_rbl_client cbl.abuseat.org reject_rbl_client dnsbl.sorbs.net reject_rbl_client zen.spamhouse.org, reject_rbl_client bl.spamcop.net, reject_rbl_client dnsbl.sorbs.net, reject_rbl_client b.barracudacentral.org, reject_rbl_client dnsbl-.uceprotect.net, reject_rhsbl_helo dbl.spamhaus.org, reject_rhsbl_reverse_client dbl.spamhaus.org, reject_rhsbl_sender dbl.spammhaus.org, reject_unknown_recipient_domain reject_non_fqdn_recipient reject_unlisted_recipient check_policy_service inet:127.0.0.1:7777 reject_unauth_destination permit smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
If the settings you showed are copy-pasted from Postfix conf, they have syntax errors. That may be one reason. What changes did you do to postfix configuration? Compare the original file to current with command diff, or copy the files to your workstation where you can use nicer diff tool like meld. http://meldmerge.org/
Thanks a lot, there was hidden 'stop' command, which I coppied - paste when I was changing the file. Emails started to come now normaly. Stupid mistake .... Anyway, is there a way, how to find which "reject_...." rule was applyed on a particular rejected email? E.g. I can see this record: 554 5.7.1 <gleaming.infordet.com[45.141.149.38]>: Client host rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<gleaming.infordet.com> (top 10) (total: 1) But it does not say the reason ....
