Please note the search engine will not return the latest data for most of today pending the completion of several important upgrades.
Update on iCloud Email Delivery
We have confirmed that iCloud is performing “silent” drops meaning no one, not us, nor the intended users, are notified of any problem with email delivery. Everything goes into a black hole.
Our job is to deliver the email to iCloud servers (think of it as the Postal Office) which we successfully do but we have no control at what iCloud does in the final leg of inbox delivery (think of it as the Postal Delivery Man). With iCloud’s silent filter currently in place, you will never know what emails you might have lost.
Issue has been forward to relevant Apple engineering team and they will attempt to resolve it on their end.