Address Letters & Cards

Can You Mail It?


Get the information you need to send domestic mail.


Help Us Keep the Mail Safe
Keeping the mail safe is a top priority at USPS®. Avoid delays by following these simple guidelines …

  • Only stamped mailpieces weighing 13 oz or less can be put in a blue collection box, Post Office™ lobby drop box, USPS self-service kiosks, or any other unattended location. Mailpieces weighing more than 13 oz and bearing stamps as postage will need to go to a retail counter at a Post Office, Contract Postal Unit, or Approved Shipper location.
  • Don’t send alcoholic beverages.
  • Don’t send prescription drugs or firearms without first consulting with USPS authorities or reviewing the applicable mailability guidelines
  • Don’t send prohibited material.

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Addressing Tips. Make sure it gets there by addressing your shipment properly. Go. Image of mailing envelope and shipping box.

APO/FPO/DPO Guidelines & Restrictions. Send mail to our troops overseas at domestic rates. Go. Image of a woman hugging a soldier.

Give Mail a personal Touch. Design Personalized Stamped Envelopes and Postcards. Images of personalized envelopes with Liberty Bell or Purple Martin stamps, and a Sailboat stamped postcard.™. Quick, Easy, Convenient®--sending your own cards is a snap. Get started at Image of logo.