search for: reject_unknown_sender_domain

...ne wrong. I can't fathom why this would block all incoming emails from the web. smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_invalid_hostname, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_rbl_client zen.spamhaus.org, permit Thanks, Kind regards, Logan Moore

...configuration. main.cf smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/dovecot-auth smtpd_sasl_authenticated_header = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname broken_sasl_auth_clients = yes smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination /etc/dovecot/auth.d/01-dovecot-postfix.auth mechanisms = plain login socket listen { client { path = /var/spool/postfix/private/dovecot-auth...

...us=deferred (host mail.xxxx.com[6.4.1.9] said: >>  450 4.1.8 <root at sce252.internal.company.com>: Sender address >> rejected: Domain not found (in reply to RCPT TO comm >> and > there is no error > > when you configure > http://www.postfix.org/postconf.5.html#reject_unknown_sender_domain you > get what you asked for and since at this point > @sce252.internal.company.com is not found the message is *temporary* > rejected with 450 > > either order postfix to get started later so that dns lookups are > working or remove that option >

...on CentOS 7, Postfix and Dovecot. We get quite a lot of spam, so I have the following sender restrictions in my /etc/postfix/main.cf: --8<------------------------------------------------------ # Restrictions SMTP smtpd_helo_restrictions = reject_unknown_helo_hostname smtpd_sender_restrictions = reject_unknown_sender_domain, check_sender_access hash:/etc/postfix/sender_access smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_rbl_client zen.spamhaus.org, reject_rhsbl_reverse_client dbl.spamhaus.org, reject_rhsbl_helo dbl.spamhaus.org, reject_rhsbl_sender dbl.spamhaus.org sm...

...ue_directory = /var/spool/postfix smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_authenticated_header = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname broken_sasl_auth_clients = yes smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination Following are dovecot -n # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-29-generic x86_64 Ubuntu 12.04.1 LTS auth_mechanisms = plain login digest-md5 base_d...

On 2/25/2019 3:36 AM, L.P.H. van Belle via samba wrote: > Hai Marco, > > For you own domains, dont point postfix to your internal DNS only, > if done wrong you might miss dns info on the wan side and thats mostlikely your error . Likely. Here is the error (ignore the ip's - messed them up for this response): Feb 25 16:22:10 sce252 postfix/smtp[3114]: 0D1E86E3A6D: to=<marco

...asl_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_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,...

...mtpd_helo_required = yes smtpd_client_restrictions = permit_mynetworks,permit smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit smtpd_sender_restrictions = permit_mynetworks, reject_non_fqdn_sender, reject_unknown_sender_domain, permit smtpd_recipient_restrictions = reject_non_fqdn_recipient, reject_unknown_recipient_domain, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_invalid_hostname, reject_unauth_pipelining, reject_rbl_client zen.spamhaus...

...reject_invalid_helo_hostname, permit smtpd_sender_login_maps = hash:/etc/postfix/smtpd_sender_login_map smtpd_client_restrictions = check_client_access hash:/etc/postfix/access smtpd_recipient_restrictions = reject_unauth_pipelining, 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.or...

...btree:${data_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_data_restrictions = reject_unauth_pipelining smtpd_helo_restrictions = reject_unknown_helo_hostname smtpd_recipient_restrictions = permit_sasl_authenticated, reject_unknown_sender_domain, reject_unknown_reverse_client_hostname, reject_unknown_recipient_domain, reject_unverified_recipient, reject_unauth_destination, reject_rbl_client zen.spamhaus.org, reject_rhsbl_helo dbl.spamhaus.org, reject_rhsbl_sender dbl.spamhaus.org, check_policy_service inet:127.0.0.1:100...

....0.0]/104 [::1]/128 myorigin = /etc/mailname readme_directory = no recipient_delimiter = + relay_transport = error relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/dovecot-auth smtpd_sasl_security_opt...

...hatte noch nach postgrey. smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/access_sender, permit_mynetworks, permit_sasl_authenticated, reject_invalid_helo_hostname, reject_unlisted_recipient, warn_if_reject check_policy_service inet:127.0.0.1:12340 reject_unknown_sender_domain, check_sender_access pcre:/etc/postfix/umlaute.pcre, check_recipient_access pcre:/etc/postfix/umlaute.pcre, reject_unauth_destination, reject_rbl_client bl.spamcop.net, reject_rbl_client zen.spamhaus.org, check_client_access cidr:/etc/postfix/client.cidr, check_policy_se...

...edsender.org permit smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_sender_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unlisted_sender, permit smtpd_tls_auth_only = yes smtpd_tls_cert_file = /usr/local/etc/ssl/more/server.crt smtpd_tls_key_file = /usr/local/etc/ssl/more/server.key smtpd_tls_loglevel = 0 smtpd_tls_mandatory_protocols = !SSLv2,!SSLv3 smtpd_tls_received_header = yes smtpd_tls_session_cache_tim...

..._sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_sender_login_maps = mysql:/etc/postfix/mysql-virtual_sender_permissions.cf smtpd_sender_restrictions = permit_mynetworks, reject_sender_login_mismatch, permit_sasl_authenticated, reject_unknown_helo_hostname, reject_unknown_recipient_domain, reject_unknown_sender_domain smtpd_tls_cert_file = /etc/ssl/server/servername.pem smtpd_tls_key_file = $smtpd_tls_cert_file smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_security_level = may unknown_local_recipient_reject_code = 550 virtual_alias_maps = mysql:/etc/postfix/mysql-virtual_alias_maps.cf virtual_...

...entral.org smtpd_end_of_data_restrictions = check_policy_service inet:127.0.0.1:10031 smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, reject_invalid_hostname smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unlisted_recipient, check_policy_service inet:127.0.0.1:10031, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_policy_service unix:private/policy-spf smtpd_reject_unlisted_send...

...ticated, permit_mynetworks, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_sender_restrictions = permit_sasl_authenticated, reject_non_fqdn_sender, reject_unknown_sender_domain smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem smtpd_tls_auth_only = no smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache sm...

...nism_filter = smtp_sasl_password_maps = smtp_sasl_path = smtp_sasl_security_options = noplaintext, noanonymous smtp_sasl_tls_security_options = $smtp_sasl_security_options smtp_sasl_tls_verified_security_options = $smtp_sasl_tls_security_options smtp_sasl_type = cyrus smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_exceptions_networks = smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/dov...

...lient_workarounds = tb-extra-mailbox-sep mail_plugins = quota imap_quota autocreate } protocol pop3 { mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } For my postfix/main.cf I have this relevant setting: smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unlisted_recipient, check_policy_service inet:127.0.0.1:7777, check_policy_service inet:127.0.0.1:10031, check_policy_service inet:127.0.0.1:12340, permit_mynetworks, permit_sasl_authenticated, reject_unauth...

...drop smtpd_banner = $myhostname ESMTP $mail_name smtpd_helo_required = yes smtpd_recipient_restrictions = permit_mynetworks, permit_mx_backup, reject_invalid_hostname, check_relay_domains, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_destination, reject_rbl_client relays.ordb.org, reject_rbl_client opm.blitzed.org, reject_rbl_client list.dsbl.org, reject_rbl_client sbl.spamhaus.org, reject_rbl_client cbl.abuseat.org,...

...127.0.0.1 recipient_delimiter = + setgid_group = postdrop smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_client_restrictions = permit_mynetworks, reject smtpd_helo_required = yes smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination smtpd_sender_restrictions = reject_unknown_sender_domain, permit virtual_alias_maps = ldap:ldapxforward,ldap:ldapforward,ldap:ldapvalias virtual_mailbox_domains = test.ecp.fr virtual_mailbox_maps = ldap:ldapcanonical virtual_transport = dovecot /etc/postfix/master.cf dovecot unix - n n - - pipe flags=DRhu user=mail:m...