This morning I received this report of a change to the SELinux context of /etc/posfix/main.cf on one of our hosts.

from:

system_u:object_r:postfix_etc_t:s0

to:

unconfined_u:object_r:postfix_etc_t:s0

The contents of the file have been verified as unchanged. There was a yum update applied yesterday to this host and this may be an intended alteration. However, can anyone confirm this for me? Or, otherwise explain what has happened?