I search from google on how to restrict user from sending mail and I did trial and errors for three days already but to no success. What I want to do is to restrict some user in sending mail while some unrestricted user will send mail to internet and intranet. I am able to restrict outside address (i.e. gmail, yahoo) to not send mail on restricted 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_access hash:/etc/postfix/restricted_sender
/etc/postfix/restricted_sender contains: testuser1@mydomain.com REJECT
I already try to use smtpd_client_restrictions and smtpd_sender_restrictions with no success, is there any other way to do it. Thanks.
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