Voytek skrev den 2017-08-07 05:17:
I have a user's inbound mail blocked by barracudacentral, is there a way
to exempt this particular user/domain from this particular RBL check ?

no thats completely impossible without logs

things to consider, postscreen, remove rbl client ip from your rules and move this to postscreen, then whitelist ips in postscreen that should not be client ip blocked

so remove reject_rbl_client and check_client_access in your config, this can be done better in postscreen

keep the rest as good, more help show logs

or what else can or should I do ?

this is the only known issue with barracuda I have and, otherwise it seems
quite effective, I think ?

smtpd_recipient_restrictions =
 check_policy_service inet:,
 check_sasl_access hash:/etc/postfix/sasl_access
 check_recipient_access hash:/etc/postfix/recipient_no_checks,
 check_recipient_access pcre:/etc/postfix/recipient_checks.pcre,
 check_helo_access hash:/etc/postfix/helo_checks,
 check_sender_access hash:/etc/postfix/sender_checks,
 check_client_access hash:/etc/postfix/client_checks,
 check_client_access pcre:/etc/postfix/client_checks.pcre,
 reject_rbl_client zen.spamhaus.org,
 reject_rbl_client b.barracudacentral.org,
 reject_rhsbl_client dbl.spamhaus.org,
 reject_rhsbl_sender dbl.spamhaus.org,
 reject_rbl_client psbl.surriel.com,
 reject_rbl_client ix.dnsbl.manitu.net,
 reject_rbl_client bl.spamcop.net,
 reject_rbl_client cbl.abuseat.org,
 reject_rhsbl_sender dsn.rfc-ignorant.org,
 check_policy_service inet:

 pflogsumm /var/log/maillog.1 | grep block
    blocked using b.barracudacentral.org (total: 482)
    blocked using bl.spamcop.net (total: 40)
    blocked using dbl.spamhaus.org (total: 133)
    blocked using ix.dnsbl.manitu.net (total: 37)
    blocked using psbl.surriel.com (total: 14)
    blocked using zen.spamhaus.org (total: 3438)

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