what is the cost of postage
You get up to 3.3 ounces for standard rate mail! First class mail postage cost is calculated by the ounce so be careful to check the weight first. If you are sending flats standard rate, your postage cost will be about 34 cents to 49 cents per piece depending on your list.
If your sending letters to people all over the country, your postage cost will be between 21 cents each and 27 cents each. These bulk mail rates are for letter size mail (up to 6.125 x 11.5 landscape only, if you turn it into a portrait orientation it becomes a flat and your postage will increase).