Will you call when the confidential mail arrives?

No, usually not. It's just that confidential information is slow, and it will be received in ten working days, which takes about two weeks. You know, confidential email files are confidential files, and confidential channels can't find the express information of files. When the documents arrive, I will be informed of the documents to be mailed. Generally speaking, I need to sign for confidential documents. I need to sign these documents on the courier, and the courier will keep this receipt. Confidential documents are generally sent by express mail, which is safe, but the disadvantage is that it is slow and needs patience.