QuantumPostcards Knowledge Base
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  • Ordering FAQ's
  • QuantumPostcards is committed to serving you. We are open, and our customer service team is available to answer any questions you may have.
  • File Specs
  • Uploading Designs & Files
  • Mailing Options & Delivery
  • Downloadable Guideline Templates
  • Mailing Lists
  • Uploading Your Mailing List
    Accepted Mailing List File Formats To upload a mailing list (My List Upload) for mailing direct mail postcards, use one of the following file formats: txt, csv, xls, xlsx. Required Fields The header row of the file must contain these exact fields: firstname, lastname, address, city, state, zip.Few readers
  • Use our Address Database
    Reach people using our addressing tools. Using our "Map an Area" feature, you can draw a custom area on the map set a radius around a central point, or target a Neighborhood. You can specify whether you want to include homeowners, renters, or both. Our data comes from multiple sources like credit files and government records. The national database we use is updated every six weeks and we use NCOA, Do Not Call, and Do Not Mail compliance.Few readers

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