A Guide to Postal Services
The United States Postal Service offers comprehensive information for all your mailing needs.
What are you mailing?
- Rate and shape information for postcards, letters, large envelopes and/or packages.
Addressing your mail
- How to properly address your mail, including state abbreviations
Choosing a service
- Information on various mailing options.
Preparing packages
- How to properly prepare packages for safe delivery.
Sending and receiving mail
- Information for senders and recipients.
Last updated 1/26/2008