Undelivered post is typically returned to the sender if a return address is provided. If no return address is available, the mail may be held at the post office for a certain period before being classified as undeliverable. In some cases, undeliverable items may be opened to identify the sender, or they may be discarded or sent to a lost and found department. Ultimately, policies regarding undelivered mail can vary by postal service.
The postal authorities return passports dispatched to the applicant by post when the addressee is not available at the given address. In such cases applicant has to collect from Passport Office.
Undelivered received
Undelivered orders outstanding--UOO (post code O)
O
O
how can i check on an undelivered check
it is O
Undelivered Orders Outstanding (UOO)
it is O
it is O
Not "d"
What happens if some else holds your mail and does not return it to the post office