Certificate of Contents Latter (Mail)

A Certificate of Contents Letter (Mail) verifies the contents of a specific piece of mail.
A document mailed with an appropriate certificate of contents that states the date it was mailed, if mailed on or before the due date, will be considered sent in a timely manner even if it is received after the due date.
Including a Certificate of Contents Letter (Mail) will ensure that your important documents, including legal and confidential documents, remain eligible as proof in the legal process.