Poscard-3

Postcards

Postcards are classified by their size and thickness. The benefit of mailing postcards is price and that the customer can see everything without having to open it.

Letter-3

Letters

Mail classified as a letter is either mailed in an envelope or a larger piece of paper folded down to letter size. 3.3oz maximum weight

Flats-3

Flats (Nonletters)

Magazines, Newsletters and Large Envelopes fall into the Flats Category. Flats are classified by their size, weight and thickness. Flats must weight no more than 16 ounces.