Sendmail is not the default mail transfer agent and is
not installed by default.
The 'sendmail' package can be removed with the following command:
'$ sudo yum erase sendmail'
[no/yes]
The sendmail software was not developed with security in mind and
its design prevents it from being effectively contained by SELinux. Postfix
should be used instead.
oval:org.secpod.oval:def:48972
oval:org.secpod.oval:def:48359
SCAP Repo OVAL Definition
2018-11-08