I would like to know what the hostnames are for the A records IP Addresses. We are having a few issues with certain clients that require some strict protocols on DNS settings. They need the A records and MX records to point to a hostname rather than IP address for security and protection against spam.
I have the following IPs for the A records
The hostname associated with these are
but when I try to update the value on my DNS provider it says the hostnames are invalid.