How can I verify if my system is configured as an open relay smtp server? I use RH 5.1, 7.0 and 9.0 and would like to check all systems and turn this off. What steps do I need to take? Thanks -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
