Special Section Mailing & Fulfillment -- Creating Mail with Fo

Back to Basics: Mailable

Review the size of the mailpiece relative to the postage costs. Letter-size is cheaper than flats, for instance. Letter-size must be greater than the minimum mailing size (31⁄2x5x.007˝) and less than the maximum letter-size (61⁄8x111⁄2x1⁄4˝).

Don't forget that the aspect ratio—length divided by height—must be between 1.3 and 2.5). If you want to use an envelope that is not the normal #10, 6x9˝ size, be doubly sure to check the size and aspect ratio. You don't want to be hit with an unexpected non-machinable surcharge. If your customer absolutely must mail that square envelope, factor in the extra postage when calculating your cost-per-response.