On Mon, Jan 06, 2014 at 01:17:41PM -0500, Eric Cunningham wrote:

The problem is entirely with the monstrosity below:

> smtpd_recipient_restrictions =
>       reject_unauth_pipelining,
>       reject_non_fqdn_recipient,

Fine.

>       check_sender_access pcre:/etc/postfix/access/final_sender_access,

Put this *AFTER* reject_unauth_destination to close the open relay.

>       reject_unknown_recipient_domain,
>       permit_sasl_authenticated,
>       permit_mynetworks,

Make sure mynetworks is defined properly.

>       reject_unauth_destination,
>       reject_unknown_sender_domain,
>       check_recipient_access pcre:/etc/postfix/access/final_recipient_access,
>       check_client_access hash:/etc/postfix/access/final_client_access,
>       check_helo_access pcre:/etc/postfix/access/suspect_helo,

Fine.

>       reject_rbl_client b.barracudacentral.org,
>       reject_rbl_client zen.spamhaus.org,
>       reject_rbl_client autospam.whoi.edu,
>       reject_rhsbl_sender dsn.rfc-ignorant.org,
>       reject_rbl_client dnsbl.ahbl.org,
>       reject_rbl_client http.dnsbl.sorbs.net,
>       reject_rbl_client socks.dnsbl.sorbs.net,
>       reject_rbl_client misc.dnsbl.sorbs.net,
>       reject_rbl_client web.dnsbl.sorbs.net,
>       reject_rbl_client dul.dnsbl.sorbs.net,
>       reject_rbl_client bl.spamcop.net,
>       reject_rbl_client cbl.abuseat.org,
>       reject_rbl_client dyna.spamrats.com,
>       reject_rbl_client noptr.spamrats.com,
>       reject_rbl_client virbl.dnsbl.bit.nl,
>       reject_rbl_client ix.dnsbl.manitu.net,
>       reject_rbl_client backscatter.spameatingmonkey.net,
>       reject_rbl_client bl.spameatingmonkey.net,
>       reject_rhsbl_sender fresh.spameatingmonkey.net,
>       reject_rhsbl_client fresh.spameatingmonkey.net,
>       reject_rhsbl_sender uribl.spameatingmonkey.net,
>       reject_rhsbl_client uribl.spameatingmonkey.net,
>       reject_rhsbl_sender urired.spameatingmonkey.net,
>       reject_rhsbl_client urired.spameatingmonkey.net,

Me thinks that 24 RBLS is approximately 20 RBLs too many.  I'll
leave it to others to suggest which ones to drop.

>       check_sender_access hash:/etc/postfix/access/check_backscatterer,
>       check_policy_service inet:127.0.0.1:10023,
>       permit

-- 
        Viktor.

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