Dear List We are using postfix-2.3.3-2.1.el5_2 under RHEL 5.3. Some of our users are in the LAN and some are connecting via Internet from different offices to send and receive email. Users from one of the locations are complaining that once they are sending mails to any external domain, the mails are getting rejected with the message:
"Recipient address rejected: Access denied" When we check the mail log for the transactions we find the following message: "Sep 28 14:22:19 mail postfix/smtpd[24057]: NOQUEUE: reject: RCPT from unknown[203.200.166.34]: 554 5.7.1 <rajivmittal1...@yahoo.com>: Recipient address rejected: Access denied; from=<shen...@rpg.in> to=<rajivmittal1...@yahoo.com> proto=ESMTP helo=<rpg.in>" The postconf -n output is [r...@mail postfix]# postconf -n alias_database = hash:/etc/postfix/aliases alias_maps = hash:/etc/postfix/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix content_filter = imss:localhost:10025 daemon_directory = /usr/libexec/postfix debug_peer_level = 2 default_destination_recipient_limit = 200 default_process_limit = 105 disable_vrfy_command = yes fallback_transport = virtual home_mailbox = Maildir/ inet_interfaces = all ipc_timeout = 5000s local_transport = maildrop mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man message_size_limit = 25728640 mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, rpgnet.com mydomain = rpg.in myhostname = mail.rpg.in mynetworks = 127.0.0.0/8, 10.50.0.0/16 mynetworks_style = subnet myorigin = $mydomain newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix rbl_reply_maps = hash:/etc/postfix/imss_rbl_reply relay_recipient_maps = ldap:/etc/postfix/virtual-mailbox.ldap sample_directory = /etc/postfix sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_client_restrictions = check_sender_access hash:/etc/postfix/rbl_sender_exception,reject_rbl_client ASNQWAVAPX7S683TZDZFBFUVXP56QLC.r.mail-abuse.com,reject_rbl_client ASNQWAVAPX7S683TZDZFBFUVXP56QLC.q.mail-abuse.com smtpd_helo_required = yes smtpd_recipient_limit = 250 smtpd_recipient_restrictions = permit_mynetworks, permit_auth_destination, permit_sasl_authenticated, reject smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_security_options = noanonymous smtpd_sender_login_maps = ldap:sender_login smtpd_sender_restrictions = permit_mynetworks, check_client_access hash:/etc/postfix/client_access, reject_sender_login_mismatch, check_sender_access regexp:/etc/postfix/sender_access, reject_unknown_sender_domain, permit_sasl_authenticated smtpd_tls_auth_only = no soft_bounce = no transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 550 virtual_alias_maps = ldap:forward virtual_gid_maps = ldap:/etc/postfix/virtual-gid.ldap virtual_mailbox_base = /home/vmail virtual_mailbox_maps = ldap:/etc/postfix/virtual-mailbox.ldap virtual_minimum_uid = 5000 virtual_uid_maps = ldap:/etc/postfix/virtual-uid.ldap We have included the IP address of the location concerned [203.200.166.34] in the client_access file and found no improvement in the situation. But our users from locations other than the complianing one are able to send mails to all addresses without any problem. Thus it is happening only for users of a particular location and that also when they are trying to send mails to external domains. These same users are able to send mails to all other users of our domain. Any help please. With regards, Goutam
