Organizations that use static IP-based ranges for their firewalls will need to update their rules to include a new allowlist domain by May 27, 2022.
Why? Moving to dynamic IP addresses is part of a critical infrastructure upgrade.
See Action required | As we move to dynamic IPs, static IPs for PDX/Oregon SaaS EUM Collector to be dep... in News & Announcements for a brief post, including brief instructions on what you will need to change if your organization if affected.
edited to link to News & Announcements post