Hello Everybody,
I am using RHEL 4 with postfix postfix-2.2.10-1.RHEL4.2. The authentication
is being done using openldap and courier packages are being used for pop and
imap. Maildrop is the mail delivery agent. The packages details are given
below:
mod_authz_ldap-0.26-2
openldap-2.2.13-6.4E
nss_ldap-226-13
python-ldap-2.0.1-2
openldap-clients-2.2.13-6.4E
php-ldap-4.3.9-3.15
courier-authlib-ldap-0.58-1.4AS
openldap-devel-2.2.13-6.4E
openldap-servers-2.2.13-6.4E
courier-authlib-debuginfo-0.58-1.4AS
courier-imap-4.1.1-1.4AS
courier-authlib-0.58-1.4AS
courier-authlib-devel-0.58-1.4AS
courier-imap-debuginfo-4.1.1-1.4AS
courier-authlib-ldap-0.58-1.4AS
I have implemented SASL authetication. Trend Micro Net Suit is being used as
the anti spam/anti virus software. Since last few days I am finding that
some of the users (out of total 900+ users 3 has reported the issue so far)
are not able to send mail to any address outside of my domain. The log entry
that I am getting is something like
Feb 8 15:54:29 mail postfix/smtpd[9334]: NOQUEUE: reject: RCPT from
unknown[59.183.54.228]: 554 <[EMAIL PROTECTED]>: Recipient address
rejected: Access denied; from=<[EMAIL PROTECTED]>
to=<[EMAIL PROTECTED]> proto=SMTP helo=<vsnl>
>From the log I can see that many mails are getting delivered to outside
domains without any problems. But the users who are getting the problem are
not able to send any mail to outside world. But these same users are able to
send mail to anyplace when they use IMAP. For web interface I am using
squirrelmail.
I am trying to get helps using google but not successful. May I request you
to kindly give some clue on how I should proceed?
I am giving below relevant (as per my understanding !!!) portion of main.cf
alias_database = hash:/etc/postfix/aliases
alias_maps = hash:/etc/postfix/aliases
local_transport = maildrop
virtual_mailbox_base = /home/vmail
virtual_mailbox_maps = ldap:/etc/postfix/virtual-mailbox.ldap
virtual_alias_maps = ldap:/etc/postfix/virtual-alias.ldap
default_process_limit = 200
imss_timeout=10m
imss_connect_timeout=20s
content_filter = imss:localhost:10025
imss_destination_recipient_limit=200
imss_destination_concurrency_limit=20
relay_recipient_maps = ldap:/etc/postfix/virtual-mailbox.ldap
transport_maps = hash:/etc/postfix/transport
alias_maps = hash:/etc/postfix/aliases
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 = no
smtp_connect_time = 25s
smtpd_recipient_limit = 250
default_process_limit = 105
smtpd_client_restrictions = check_sender_access
hash:/etc/postfix/rbl_sender_exception,reject_rbl_client
AS3DR6HRXQS7R599DVTE9X57CUF39TJ.r.mail-abuse.com,reject_rbl_client
AS3DR6HRXQS7R599DVTE9X57CUF39TJ.q.mail-abuse.com
rbl_reply_maps = hash:/etc/postfix/imss_rbl_reply
virtual_alias_maps = ldap:forward
forward_timeout = 60
forward_server_host = 127.0.0.1
forward_search_base = dc=rpg,dc=in
forward_server_port = 389
forward_query_filter = (&(|(mail=%s))(accountStatus=enable))
forward_result_attribute = mailForwardingAddress
Goutam Baul
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