What Are Letters?
Letters are a written means of correspondence with another person, business entity, or other organization. A letter can be comprised of an invoice, marketing message, personal note, and any other item that fits into a business-sized envelope.
The USPS provides a simple and affordable way to mail letters using First-Class Mail®. To qualify as a First-Class Mail® letter, your mailpiece must be no smaller than 3½” high x 5” long and at least 0.007” thick. It must be no bigger than 6 1/8″ high x 11½” long and no more than ¼” thick. Letters sent via First Class Mail® cannot weigh more than 3.5 ounces.
Sending First-Class Mail® letters with Stamps.com is easy
When you combine the ease of sending First-Class Mail® letters with the convenience of Stamps.com, you and your staff will never have to waste time at the Post Office again. Not only does Stamps.com tell you exactly how much postage is required to send a letter of any weight, shape, or size to any domestic or international destination, but it also lets you print official, USPS-approved postage and address labels from the comfort of your own home or office.
Stamps.com features include:
- Access to all USPS mail classes.
- Skip the trips to the Post Office, and print postage online 24/7.
- Print any denomination of postage on envelopes, labels, or plain paper.
- Add USPS special services including USPS Tracking®, Return Receipt, Registered Mail, insurance, and more.
$60 in free postage and supplies when you sign up!
- $5 in free postage added to your account
- 5 lb digital scale (only pay for S&H)
- Free mailing and shipping supplies kit
- Risk-free 30-day trial
- No long-term contracts. Cancel anytime.
