Step 1. Create the workspace admin set up for the client using their card details at https://admin.google.com/ Add the TXT record to the domain, then verify the domain in Google Workspace Check the cPanel "Routing" is set to Automatic Get the MX Records from Google...
DNS & CPANEL
Reset Cpanel password (if blank) in WHMCS
First thing to try is add a password to the field click "save" at bottom of screen then press the password rest button
Setting up DMARC Record
Reference Video: Default value to use if nothing specific was defined: v=DMARC1;p=quarantine;sp=quarantine;adkim=r;aspf=r;pct=100