Learning Center

If you need help or just have some questions this is the place to start.

Take a look at the resources below. We have video walkthroughs for every step of the MailBoxDirect order process as well as great information about art specifications, data lists, and more.

Art Files

Acceptable Art File Formats

MailBox Direct Postcards accepts seven different types of art files: .jpg, .pdf, .eps, .bmp, .png, .gif, and tif. Artwork files should be designed and submitted in CMYK color mode. Please flatten your files prior to uploading and do not include crop marks.

Image Resolution

The resolution of your artwork files should be 300dpi or 300ppi. The terms dpi and ppi are often used interchangeably and generally mean the same thing. Dpi, or dots per inch, refers to the amount of ink dots printed in the 4-color print process. Ppi, or pixels per inch, refers to the amount of information stored in a digital file.

Trim Lines, Bleed, and Safe Areas

The Trim Line represents where the piece will be cut to the final, finished size. 1/8″ inside of the trim line should also be kept clear of important information like text or logos—this is called the Safe Area. Bleed is a printing term that refers to text or graphics that extend beyond the edge after trimming. Artwork files should include an additional 1/8" (.125") of bleed outside the trim line on all four edges of the postcard design. For example, artwork uploaded for a postcard with a final trim size of 5.5" x 8.5" should be 5.75" x 8.75".

Postcard Templates

Click on the appropriate size below to download the postcard template.

Data Lists

Consumer Lists – 3¢/record - $45 min

A Consumer List is a good option if you want to reach certain types of consumers within a defined area. This option allows you to create a targeted mailing list comprised of consumers that are most likely to respond to your direct mail message. You can select specific demographic characteristics such as age, income, dwelling type, home value, and many more. If you want to reach a specific type of consumer in just one zip code or across multiple states, the Consumer List is your solution. Call us at (866) 659-8393 to discuss your mailing list needs. Additional Consumer List selections include:

    • Ethnicity
    • Household Size
    • Home Purchase Date
    • Net Worth
    • Buying Activity

    • Charitable Giving
    • Consumer Interests
    • Vehicle Make and Model
    • Vehicle Propensity
    • Presence of Pool

Note: Some demographic selections may increase the total list cost.



Business Lists – 6.5¢/record - $65 min

At MailBox Direct, you can customize your Business List by defining the business type, geography, and more. Target businesses nationwide or in your own backyard. Call us at (866) 659-8393 to discuss your mailing list needs. Business List selections include:

    • Type of Business
    • Years in business
    • Geography
    • Sales Volume

    • Number of Employees
    • Ownership Indicator
    • North American Industry Classification System (NAICS)

Note: Some additional selections may increase the total list cost.


Resident Lists – 1.5¢/record - $45 min

A Resident List, also known as an Occupant List or Saturation List, includes virtually every mailing address within a specified geographic area. If your business, product, or service applies to a general audience, this is the list for you. If you want to reach all residents in only a few zip codes, or you want to reach every address in an entire city, the Resident List is your solution. Call us at (866) 659-8393 to discuss your mailing list needs.

Note: Some demographic selections may increase the total list cost.

Using Your Own List

Do you have your own mailing list? Great!

You can upload your mailing list during the order process. Our order system accepts the following formats: .xls, .xlsx, .mdb, .accdb, .csv, .txt – Please format your mailing list so that each mailing record (recipient) has its own row and each column has a heading at the top and contains one piece of the address (First Name, Last Name, Company, Address, Address 2, City, St, Zip)