To configure postfix correctly, run the following commands as root.
Create a symbolic link allowing postfix to run the notification enqueuer with the following command:
# ln -s /usr/bin/ack_enqueuer.pl /etc/smrsh/.
/etc/aliases file on the mail server and add the following line:
rogerthat01: "| /etc/smrsh/ack_enqueuer.pl"
Ensure the following line exists in your
/etc/postfix/main.cf file and change:
inet_interfaces = all
Process the alias with the following command:
# service postfix restart