goutam baul uelsuucjgycesccoin hello everybody using rhel 4 postfix postfix22101rhel42 authentication done using openldap courier packages used pop imap maildrop mail delivery agent packages details given mod_authz_ldap0262 openldap221364e nss_ldap22613 pythonldap2012 openldapclients221364e phpldap439315 courierauthlibldap05814as openldapdevel221364e openldapservers221364e courierauthlibdebuginfo05814as courierimap41114as courierauthlib05814as courierauthlibdevel05814as courierimapdebuginfo41114as courierauthlibldap05814as implemented sasl authetication trend micro net suit used anti spamanti virus software since last days finding users total 900 users 3 reported issue far able send mail address outside domain log entry getting something like feb 8 155429 mail postfixsmtpd9334 noqueue reject rcpt unknown5918354228 554 recipient address rejected access denied protosmtp helo log see many mails getting delivered outside domains without problems users getting problem able send mail outside world users able send mail anyplace use imap web interface using squirrelmail trying get helps using google successful may request kindly give clue proceed giving relevant per understanding portion maincf alias_database hashetcpostfixaliases alias_maps hashetcpostfixaliases local_transport maildrop virtual_mailbox_base homevmail virtual_mailbox_maps ldapetcpostfixvirtualmailboxldap virtual_alias_maps ldapetcpostfixvirtualaliasldap default_process_limit 200 imss_timeout10m imss_connect_timeout20s content_filter imsslocalhost10025 imss_destination_recipient_limit200 imss_destination_concurrency_limit20 relay_recipient_maps ldapetcpostfixvirtualmailboxldap transport_maps hashetcpostfixtransport alias_maps hashetcpostfixaliases default_destination_recipient_limit 200 disable_vrfy_command yes smtpd_helo_required yes smtpd_sender_restrictions permit_mynetworks reject_unknown_sender_domain permit_sasl_authenticated smtpd_recipient_restrictions permit_mynetworks permit_auth_destination permit_sasl_authenticated reject smtpd_sasl_auth_enable yes smtpd_sasl_security_options noanonymous smtpd_sasl_local_domain myhostname broken_sasl_auth_clients yes smtpd_tls_auth_only smtp_connect_time 25s smtpd_recipient_limit 250 default_process_limit 105 smtpd_client_restrictions check_sender_access hashetcpostfixrbl_sender_exceptionreject_rbl_client as3dr6hrxqs7r599dvte9x57cuf39tjrmailabusecomreject_rbl_client as3dr6hrxqs7r599dvte9x57cuf39tjqmailabusecom rbl_reply_maps hashetcpostfiximss_rbl_reply virtual_alias_maps ldapforward forward_timeout 60 forward_server_host 127001 forward_search_base dcrpgdcin forward_server_port 389 forward_query_filter mailsaccountstatusenable forward_result_attribute mailforwardingaddress goutam baul corporate information systems cesc limited wed 06 aug 2008 051235 0530 mail sending problem