Addressed mail & mailing lists

What should be in my mailing list CSV?

Upload a CSV with a header row and one recipient per line. At minimum you need a street address, city, state and ZIP; a name column makes the piece personal. Export from a spreadsheet as CSV and you are usually most of the way there.

Columns we look for

  • Name — first and last, or a single full-name column.
  • Street address — including apartment or suite where it applies.
  • City
  • State — the two-letter code is safest.
  • ZIP

Getting it out of a spreadsheet

  1. Put your column headings in the first row.
  2. Remove any title rows, totals or blank rows above the headings.
  3. Save or export as CSV rather than .xlsx.
  4. Upload it — we check it and tell you what we found before you pay.

We recommend

Use the two-letter state code. A column that says "New Jersey" on some rows and "NJ" on others is the most common reason a list needs a second pass.

L&B policy

Your list is customer data and is treated as confidential. It is stored privately, used to produce your mailing, and is not shared.