No Postage Neccessary if mailed in the U.S.

Reported as spam.

I know this is an old thread, but in case someone returns here looking at this information, here is the final word from Anita J. Bizzotto, currently the Executive Vice President of the US Postal Service:

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This is from PS-086 (505.1). For more information, see the Customer Support Ruling: https://pe.usps.com/text/csr/ps-086.htm

…and there ya go.

By attaching a Priority Mail sticker to the front of the envelope, the company will be required to pay the Priority Mail rate instead of the normal BRM rate. Just be sure not to cover up the barcode or any other information. It’s okay to wrap it around the edge of the envelope. The post office will send you Priority Mail stickers for free. You can order them online. Click here for rolls of 250 stickers, or here for rolls of 1,000 stickers. They’ll deliver them to your house at no charge. :stuck_out_tongue:

This part of your source actually addresses something that hadn’t already been shown with other cites.