You can see which repositories your instance is pointing to by taking a look at the "releasever" variable in /and many others/yum.conf – by default, the Amazon Linux AMI has releasever=most current established. In a very very simple thought, MX history features to hello the earth which mail servers acknowledge https://office-365-smtp-setup55554.canariblogs.com/everything-about-whmcs-install-42322347