search for: check_helo_access

...n_hostname, reject_invalid_hostname, reject_unknown_reverse_client_hostname, check_client_access cidr:/etc/postfix/check_client_access-reject.cidr, reject_unauth_pipelining smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, reject_unauth_destination, check_helo_access pcre:/etc/postfix/check_helo_access-hostname-checks.pcre, check_helo_access hash:/etc/postfix/check_helo_access-allow.map, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, reject_unknown_helo_hostname, reject_unauth_pipelining Resulting in more happy customers since...

...trange behaviour. > > We enabled smtp_helo_restrictions: > > smtpd_helo_required = yes > > smtpd_helo_restrictions = >    permit_mynetworks, >    permit_sasl_authenticated, >    reject_unlisted_recipient, > # check_client_access hash:/etc/postfix/ >    check_helo_access hash:/etc/postfix/check_helo_access >    reject_invalid_helo_hostname >    reject_non_fqdn_helo_hostname >    reject_unknown_helo_hostname > > unknown_hostname_reject_code = 550 > > in the "check_helo_access" map there are only certain senders with their &gt...

..._helo_restrictions: > >> smtpd_helo_required = yes > >> smtpd_helo_restrictions = > >> permit_mynetworks, > >> permit_sasl_authenticated, > >> reject_unlisted_recipient, > >> # check_client_access hash:/etc/postfix/ > >> check_helo_access hash:/etc/postfix/check_helo_access > >> reject_invalid_helo_hostname > >> reject_non_fqdn_helo_hostname > >> reject_unknown_helo_hostname > >> unknown_hostname_reject_code = 550 > >> in the "check_helo_access" map there are only ce...

...s://wiki.centos.org/HowTos/postfix_restrictions After some experimenting, here's what I currently have on my test server: --8<----- /etc/postfix/main.cf ----------------------------- ... smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, check_helo_access hash:/etc/postfix/helo_access reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, reject_unknown_helo_hostname smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated, check_sender_access hash:/etc/postfix/sender_access, reject_unknown_sender_domain, reject...

...t_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_sender_access hash:/etc/postfix/sender_access, check_recipient_access hash:/etc/postfix/roleaccount_exceptions, check_helo_access pcre:/etc/postfix/helo_checks, reject_rbl_client sbl-xbl.spamhaus.org, reject_rbl_client cbl.abuseat.org, reject_rbl_client dul.dnsbl.sorbs.net, check_policy_service unix:postgrey/socket, permit # reject_unauthenticated_sender_login_mismatch smtpd_sasl_auth_enable = yes smtpd_s...

Package: logcheck-database Version: 1.2.44 Severity: wishlist -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 When using postfix smtpd_helo_restrictions / check_helo_access, the lines attched in 'postfix-helo.log' appear. The following rule can be used to filter them out: ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: NOQUEUE: reject: HELO from [^[:space:]]+: 553 <[^[:space:]]+>: Helo command rejected: .*; proto=E?SMTP helo=<[^[:space:]...

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

...g, reject_non_fqdn_recipient, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unknown_recipient_domain, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_recipient_access hash:/etc/postfix/roleaccount_exceptions, reject_invalid_hostname, check_helo_access pcre:/etc/postfix/helo_checks, reject_rbl_client sbl-xbl.spamhaus.org, permit smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes tls_random_e...

...t_access hash:/etc/postfix/access, permit_sasl_authenticated, smtpd_data_restrictions = reject_unauth_pipelining smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, check_helo_access hash:/etc/postfix/helo_access, reject_invalid_hostname, reject_non_fqdn_hostname smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_invalid_hostname,...