Both domains check out as Safe via Talos and others.
Do you have any Geographic Firewall rules that could be blocking them? Albeit, both domains show as registered in USA
Darren OConnor | doconnor@resalire.co.uk
https://www.linkedin.com/in/darrenoconnor/
I'm not an employee of Cisco/Meraki. My posts are based on Meraki best practice and what has worked for me in the field.