Beginning January 5, 2013, the USPS will officially begin enforcing new specifications for FSMs (Folded Self-Mailers). After significant testing, these revisions helped to improve machinability and reduce mailer damage—while still supporting creative presentations. You’ll enjoy the most economical automation rates when you play by the new rules, too.

6-inch x 10.5-inch maximum size
3-ounce maximum weight
New paper weight specifications
Modified folding and sealing requirements

Click here to download a USPS PDF that reviews the changes. More information also is available by visiting But why not save time? Contact our mailing experts or your Sexton representative.