search for: rhsbl

Hello to all members. I am using Dovecot for 5 years, but this is my first post here. I am aware of the various autoresponder scripts for vacation autoreplies (I am using Virtual Vacation 3.1 by Mischa Peters). I have an issue with auto-replies - it is vulnerable to spamming with forged email address. Forging can be prevented with several Postfix settings, which I did in the past - but was forced

...o idea where else to ask this and get a real qualified answer but here. Not exactly pure centos question....but... I am adding blacklists to my postfix smtpd settings. I have the inkling that after the first lookup for a domain or ip that my dns caches the result and I no longer bother the RBL or RHSBL list owners anymore in that instance. Is that correct? I hate to waste their resources if it is not. thanks, bob

...-query {any;}; allow-transfer {any;}; }; ================================================== ========== ==== FILE qmail-smtp/RUN ================================ .......... /usr/local/bin/rblsmtpd -t 5 -b -C -r bl.spamcop.net \ -r sbl.spamhaus.org -r relays.ordb.org -r dnsbl.antispam.or.id \ -r rhsbl.ahbl.org -r opm.blitzed.org \ -r cn-kr.blackholes.us -r japan.blackholes.us \ -r taiwan.blackholes.us -r thailand.blackholes.us \ -r nigeria.blackholes.us -r argentina.blackholes.us \ -r bl.spamcop.net -r smtp.dbl.sorbs.net \ -r web.dnsdl.sorbs.net -r spam.dnsbl.sorbs.net \ -r zombie.dnsbl.sorbs.ne...

...cated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destination, reject_unauth_pipelining, reject_rbl_client bl.spamcop.net, reject_rbl_client sbl-xbl.spamhaus.org, reject_rbl_client zen.spamhaus.org, reject_rbl_client dnsbl.sorbs.net, reject_rbl_client rhsbl.sorbs.net, reject_rbl_client db.wpbl.info, reject_rbl_client cbl.abuseat.org, reject_rbl_client proxies.blackholes.wirehub.net, reject_rbl_client query.bondedsender.org permit smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination smtpd_sasl_auth_enable = ye...

...k_sender_access hash:/etc/postfix/sender_access, reject_unknown_sender_domain, reject_unknown_reverse_client_hostname, reject_unknown_client_hostname smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, check_client_access hash:/etc/postfix/rbl_override, reject_rhsbl_helo dbl.spamhaus.org, reject_rhsbl_reverse_client dbl.spamhaus.org, reject_rhsbl_sender dbl.spamhaus.org, reject_rbl_client zen.spamhaus.org --8<-------------------------------------------------------- Before committing this configuration to my main server, I thought I'd share this c...

...reject_rbl_client cbl.abuseat.org, reject_rbl_client dnsbl.njabl.org, reject_rbl_client combined.njabl.org, reject_rbl_client bl.spamcop.net, reject_rbl_client spamguard.leadmon.net, reject_rbl_client korea.services.net, reject_rbl_client spamsources.fabel.dk, reject_rhsbl_sender rhsbl.ahbl.org smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${queue_directory}/cache/smtpd_scache smtpd_use_tls = yes virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias...