search for: reject_invalid_hostnam

...;t working. With the following enabled, nothing comes through from the outside world. Can anybody see where I've gone 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

...16:36:34 hostname postfix/smtpd[1372]: extract_addr: in: <root at myportaltech.com>, result: root at myportaltech.com Feb 21 16:36:34 hostname postfix/smtpd[1372]: >>> START Recipient address RESTRICTIONS <<< Feb 21 16:36:34 hostname postfix/smtpd[1372]: generic_checks: name=reject_invalid_hostname Feb 21 16:36:34 hostname postfix/smtpd[1372]: reject_invalid_hostname: gate1.mds.com.sg Feb 21 16:36:34 hostname postfix/smtpd[1372]: generic_checks: name=reject_invalid_hostname status=0 Feb 21 16:36:34 hostname postfix/smtpd[1372]: generic_checks: name=reject_unauth_pipelining Feb 21 16:36:34 ho...

...or not, but i use this. The _access-allow parts for server you really trust. smtpd_client_restrictions = permit_mynetworks, reject_unauth_destination, check_client_access cidr:/etc/postfix/check_client_access-allow.cidr, reject_unknown_hostname, reject_non_fqdn_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/ch...

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

...ns = 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.org, reject_rbl_client truncate.gbudb.net, reject_rbl_client dnsbl.njabl.org reject_rbl_client cbl.abuseat.org reject_rbl_client bl.spamcop.net, reject_rbl_client dnsbl.sorbs.net, sleep 1, permi...

...= 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.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_clie...

...postfix/mysql_relay_domains.cf smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destination, reject_unauth_pipelining, check_policy_service inet:127.0.0.1:10023, reject_invalid_hostname smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous content_filter = amavis:[127.0.0.1]:10024 receive_override_options = no_address_mappings inet_protocols = ipv4 The end of master.cf file dovecot unix - n n - - pipe flags=DRhu user=smtp:sm...

...ocal/etc/postfix sendmail_path = /usr/local/sbin/sendmail setgid_group = maildrop shlib_directory = /usr/local/lib/postfix smtp_tls_note_starttls_offer = yes smtp_use_tls = yes smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_invalid_hostname, reject_unknown_hostname, reject_non_fqdn_hostname, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destinatio...

...I tried using smtpd_sender_restrictions = reject_unverified_sender reject_unverified_smtp and this seems a bit too restrictive and got some bounces on legitimate senders so I'm thinking that this is perhaps a bit more apropos... smtpd_helo_restrictions = permit_mynetworks, reject_invalid_hostname does this make sense? Craig

...client zen.spamhaus.org, reject_rbl_client b.barracudacentral.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_poli...

...host mynetworks = 127.0.0.0/8 myorigin = /etc/mailname recipient_delimiter = + smtp_tls_note_starttls_offer = yes smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = Mail ESMTP smtpd_helo_required = no smtpd_helo_restrictions = permit_mynetworks, reject_invalid_hostname, permit smtpd_recipient_restrictions = reject_unauth_pipelining, permit_sasl_authenticated, 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 = do...

...thenticated, 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, reject_non_fqdn_hostname, reject_non_fqdn...

...lay_domains_reject_code = 554 relay_recipient_maps = sample_directory = /etc/postfix sendmail_path = /usr/local/sbin/sendmail setgid_group = _postdrop 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_r...

...---------- smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = yes smtpd_sender_restrictions = permit_sasl_authenticated, check_sender_access hash:/etc/postfix/sender_access smtpd_recipient_restrictions =permit_sasl_authenticated, reject_unknown_recipient_domain, reject_invalid_hostname, reject_non_fqdn_recipient, # reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, permit_mynetworks, reject_unauth_destination, smtpd_sasl_type = dovecot smtpd_s...

...users but the vice versa I can not do. Is there anybody here that have experience in doing so. Please help. By the way, I am using Postfix on top of CentOS 4.5. Below are some of the entries in main.cf: smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/access, reject_invalid_hostname, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_client_restrictions = check_client_access hash:/etc/postfix/restricted_sender #smtpd_sender_restrictions = check_sender...

Hi all Trying to setup dovecot with mysql and postfix, I have configured it as given below. thecot user has the dovecot group as primary, and is also a member of mail and dovecot-users. Still, it can't setgid to dovecot-users. I tried changing the shell for the dovecot user to something useful and chmod'ing a file to dovecot-users, and it work well. Still, no mail comes through

...endmail setgid_group = maildrop smtp_tls_note_starttls_offer = yes smtp_use_tls = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destination, reject_unauth_pipelining, reject_invalid_hostname, reject_rbl_client list.dsbl.org, reject_rbl_client bl.spamcop.net, reject_rbl_client sbl-xbl.spamhaus.org smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl...

...in/sendmail setgid_group = maildrop smtp_tls_note_starttls_offer = yes smtp_use_tls = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destination, reject_unauth_pipelining, reject_invalid_hostname, reject_rbl_client list.dsbl.org, reject_rbl_client bl.spamcop.net, reject_rbl_client sbl-xbl.spamhaus.org smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_...

...ner = $myhostname Microsoft ESMTP MAIL Service, Version: 6.0.3790.1830 ready. smtpd_data_restrictions = reject_unauth_pipelining, reject_multi_recipient_bounce permit smtpd_helo_required = yes smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, permit_sasl_authenticated, reject_invalid_hostname, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_destination, check_recipient_access hash:/etc/postfix/recipient_access.hash,...

...x/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destination, reject_unauth_pipelining, reject_invalid_hostname, reject_rbl_client zen.spamhaus.org, check_policy_service inet:127.0.0.1:10023 smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_tls_CAfile = /etc/...