Greetings! I am running postfix 2.3.3 on Redhat RHEL 5 for a local SMTP MTA. For security purpose, we need to restrict its outbound emails to selected destination domains only.
http://www.postfix.org/postconf.5.html#smtpd_recipient_restrictions The default is: smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination I modified it as: smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/local_domains, reject All outbound emails will be sent to relay host: relayhost = mail-vip.local.paygateway.com /etc/postfix/local_domains mycompany.com OK Hotmail. com OK However, it looks not effective. I can still send outbound email to anywhere. Do I miss anything? Thanks, Steve NOTICE: This email message is for the sole use of the addressee named above and may contain confidential information. Any unauthorized review, use, disclosure, distribution or duplication of this message or any attachments is expressly prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies and backups of the original message.
