text: Receiving a receipt back once the letter was delivered isn't "certified mail".  The service you should have purchased if you wanted that was "return receipt requested".\n\nHowever, the stub which was given to you by the post office has a tracking number on it.  You can either call 1-(800)-ASK-USPS and check on it, or you can go to:\n\nhttp://www.usps.com/shipping/trackandconfirm.htm?from=home&page=0035trackandconfirm\n\nFrom there, you can enter your tracking number and find out the current status of the letter you mailed.  =)