When mail hosting is absent on Global Relay managed domain and the subscription is disabled, the subscription cannot be enabled back due to the following error:
Service Starting Failed: Parallels Operations Automation error #extype_id #253, module_id #GlobalRelay, Domain domain.tld which is registered as a primary in Global Relay is absent in subscription 1000001 or it has no mail hosting..
This issue is reported to the OA maintenance team as POA-71337: "Unable to enable subscription with GlobalRelay because GR domain has no mail hosting".
Please contact your Account Manager or Pooled Technical Associates team (firstname.lastname@example.org) to trace the status of POA-71337.
For a workaround please contact Odin technical support.