postcards
When mailing a postcard there are certain parameters that you must follow to ensure that the mail is able to be processed by the postal service. Below is a diagram of these rules as well as a list of standard postcard sizes.
| 6 x 4 ¼ 7 x 5 8 ½ x 6 |
9 x 6 11 x 6 8 ½ x 11 |
mailing restrictions: