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remove permit_dnswl_client because postfix has odd behavior when an IP address is not listed: it turns all bounces into deferrals (retry)

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partially reverts 6d473f81ac
This commit is contained in:
Joshua Tauberer 2014-05-23 08:58:49 +00:00
parent 19aba091d7
commit af03feb389
1 changed files with 7 additions and 2 deletions
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9
scripts/mail.sh
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@ -60,13 +60,18 @@ tools/editconf.py /etc/postfix/main.cf \
# reject_rhsbl_sender: Reject return paths that use blacklisted domains.
# permit_sasl_authenticated: Authenticated users (i.e. on port 587).
# permit_mynetworks: Mail that originates locally.
# permit_dnswl_client: Mail from whitelisted IP addresses. (Good to put before greylisting so these IPs get mail delivered quickly).
# reject_rbl_client: Reject connections from IP addresses blacklisted in zen.spamhaus.org
# check_policy_service: Apply greylisting using postgrey.
#
# Notes:
# permit_dnswl_client can pass through mail from whitelisted IP addresses, which would be good to put before greylisting
# so these IPs get mail delivered quickly. But when an IP is not listed in the permit_dnswl_client list (i.e. it is not
# whitelisted) then postfix does a DEFER_IF_REJECT, which results in all "unknown user" sorts of messages turning into
# "450 4.7.1 Client host rejected: Service unavailable". This is a retry code, so the mail doesn't properly bounce.
tools/editconf.py /etc/postfix/main.cf \
smtpd_sender_restrictions="reject_non_fqdn_sender,reject_unknown_sender_domain,reject_rhsbl_sender dbl.spamhaus.org"
tools/editconf.py /etc/postfix/main.cf \
smtpd_recipient_restrictions=permit_sasl_authenticated,permit_mynetworks,"permit_dnswl_client list.dnswl.org","reject_rbl_client zen.spamhaus.org","check_policy_service inet:127.0.0.1:10023"
smtpd_recipient_restrictions=permit_sasl_authenticated,permit_mynetworks,"reject_rbl_client zen.spamhaus.org","check_policy_service inet:127.0.0.1:10023"
# Have postfix listen on all network interfaces, set our name (the Debian default seems to be localhost),
# and set the name of the local machine to localhost for xxx@localhost mail (but I don't think this will have any effect because