Updated Requirements for SMTP Relay through Exchange Online

jdubtx You can email or IM me the tenant you have encountered the change. We have notified to impacted tenants via Message Center post before each ring deployment. We would like to see why your tenant is missed. 

Again, I want to strengthen it that this is not a per tenant feature enablement, this is a change on the underline infrastructure. We collect the tenants that might be impacted in each ring and notify them, but relay mails do have different behavior on daily basis, so want to make sure that is the case. 

Question to you: Have you run report before to see if your tenant would be impacted or not?  I am trying to understand, what would be the difference (action item on your end) if you get notified that the change is coming?