After a instance has been renamed, the email notifications and link could still reflect the old server name and old server URL. Keeping the old glide.servlet.uri and glide.proxy.host values can cause wrong URLs to be generated on notifications and scripts.
Steps to Reproduce
Perform an instance rename request. Once the change is completed, note that the values for glide.servlet.uri and glide.proxy.host do not update automatically.
Open the sys_properties form, then set the correct values for glide.servlet.uri with the new URL. For example:
glide.servlet.uri = https://<newname>.service-now.com/
Related Problem: PRB597633