Where will the Canadian passport be sent if it is not posted properly?

Passports that fail to be mailed in Canada will be sent to the Canadian visa application center. By consulting the official announcement of Canadian passport labels, as of August 10, 2023, passports will be sent back by immigration officials to the mailing address provided at the time of application, and passports that fail to be labeled in Canada will be sent to the Canadian visa application center. Passport is an identity and travel document issued by the national government to its citizens. It is an internationally recognized document, which is used to prove the identity and nationality of the holder and allows the holder to travel or live internationally.