This is simply a link for public display. A certificate of mailing, COM is useful when addresses are known and we want to save money in expense to verify mail. COM is used to verify a third party; the USPS has received the mail and that it is to be delivered to the address on the COM. It is helpful and even less expensive to use the form or firm to produce a document signed by the USPS clerk that a list of mail has been presented. You can put up to 49 on the firm without having to go to a special processing center. Here is the link to the scan. The COM included Second Notices to COUNTY OF GRAYSON [Texas], DOT [Federal and Colorado] and Wells Fargo.