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Ever wonder why there is a small, square barcode on our mail? We just wrote a blog about it: http://blog.letterstream.com/mailing-company/2016/05/12/2d-or-not-2d-that-is-the-question/
What's that black square beside the Recipient address on the mail you are sending? The little back square visible on some documents near the mailing address is called a 2D or two dimensional bar-code. It is not yet on all of our mail pieces, but most of them (such as Express Letters, Ce
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