Are poly mailers considered envelopes? Stores & Services 20 April 2022 Is a poly mailer considered an envelope? -Using USPS, a poly mailer can either be a package or large envelope…
Does USPS accept poly mailers? Stores & Services 11 April 2022 Any non-paper envelope (such as a poly mailer) that is shipped as a “letter” would be considered non-machinable and subject…
Can I use a padded envelope for priority mail? Stores & Services 30 March 2022 Items needing extra protection can be sent in bubble-lined, padded paper, or waterproof envelopes. These envelopes, along with stationery and…
