CASS Certification: Coding Accuracy Support System (CASS) adds Zip+4 codes to your mailing list wherever possible. We also add postal barcodes to your mail pieces and remove duplicates or non-deliverable addresses. This service is standard for all of our mailings assuring that your mailing list is properly sorted before it is mailed. 

Addressing - The only text allowed in the address space is the mailing stamp or indicia and the recipient's address. USPS automation does not read graphics, screens or other designs.

Mailing lists should be submitted as either an Excel file or Comma-Delimited ASCII file.

Turnaround time for mail processing of your printed pieces is 1-2 business days.

Any changes to the specifications will require a revised quotation.

Our liability is limited to the amount of our invoice (excluding postage)




Postal rates are determined by the number of mail pieces, size and area of mailing. Exact postage will be determined once the data file has been processed. Preparing mail according to Postal Service Guidelines allows your mail to be delivered as quickly and affordably as possible. 

Postcard-size First ClassLetter-size First-Class AutomatedLetter-size Standard Presorted
Delivery TimeDelivery TimeDelivery Time
1-3 days in California
3-5 days Nationwide
1-3 days in California
3-5 days Nationwide
5-21 days Nationwide
Postage per piecePostage per piecePostage per piece
$ 0.3$ 0.46$ 0.32
Min: 3.5 x 5" Max: 4.25" x 6"Min: 3.5" x 5" Max: 6" x 11"Min: 3.5" x 5" Max: 6" x 11"
Min: .007" Max: .25"Min: .007" Max: .25"Min: .007" Max: .25"

Need a mailing list?
No problem! We offer complete mailing services including mailing lists. Let us help you choose the best prospects for a mailing list that fits your marketing goals. We have access to 14 million businesses, 220 million consumers, and the most up-to-date data. You can read more on the "Mailing Lists" tab below.

EDDM  -  Every Door Direct Mail (or EDDM®) saves you money on postage while targeting more addresses than traditional direct mail. Since postage costs around $.175 per piece, you get to spend less (compared to traditional postcard mailing) while spreading the word about your business.

All of our EDDM® postcard sizes are covered under the USPS Every Door Direct Mail® rates. All information re: EDDM setup can be found at the Be sure to avoid rounded corners, and avoid using a gloss or UV finish on your postcard’s mailing panels though.

Once you receive it, you'll just need to bundle it for mailing, fill out the required USPS paperwork, and take it to the post office.



We offer web2print private portals for your business.  If you have a common product that just needs a simple variable information setup we can provide that service.  Unique not only handles print, but also any other type of marketing products. Regardless what is used to promote your brand; print, promotional merchandise, apparel, gizmo or digital, Unique can bring it all under a single platform.