This is mailed to your original address to prevent fraud, ensuring that someone isn't trying to divert your mail without your knowledge.
For official mail forwarding or legal updates, you must use specific government "papers": How to Change Your Address - USCIS change of address confirmation
Opening that letter and seeing one's name correctly aligned with the new street number is a moment of cognitive closure. The bureaucracy has accepted the move; therefore, the move is real. This is mailed to your original address to
Mailed to your new address, this contains the formal "Customer Notification Letter" confirming the start date of your forwarding service. Why is This Confirmation So Important? Mailed to your new address, this contains the
Submitting multiple requests can confuse the system and lead to mail being "looped" or returned to sender. Summary Checklist for a Smooth Transition