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Mail.dat Editor

Manage and Edit Mail.dat® files with the Mail.dat Editor add-on module for AccuZIP6 (Coming Soon)

If you process or edit Mail.dat files after the presort process, you need this add-on!


  • Upload a job to PostalOne!®
  • Cancel a job on PostalOne!
  • Delete a job on PostalOne!
  • Edit any AccuZIP6-generated Mail.dat file
  • Change mailing date
  • Change piece weight
  • Split a mailing into two or more parts



  • Seamlessly integrated into AccuZIP6, the Mail.dat Editor eliminates the need for costly and cumbersome third-party editors!
  • Eliminate re-running presorts to deal with last minute changes
  • Take advantage of productivity improvements resulting from electronic transactions with the USPS®
  • Electronically edit Mail.dat in an easy-to-use UI to reduce time and labor
  • Update/edit piece weight to reflect final mailing
  • Validation upon PostalOne! upload to help prevent Mailer Scorecard assessments
  • Provides a solution that is technically competent but familiar and easy to use
  • Employees can get up to speed with the Mail.dat Editor quickly because they are already familiar with AccuZIP6!

Free Consultation and Demo

Fill out the form below to have an AccuZIP product specialist contact you to discuss your mailing environment. Our product specialists will discuss your unique mailing needs and identify how the AccuZIP6 Mail.Dat Editor can improve your efficiency and profitability.


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AccuZIP’s Professional Services Team has been a great resource for helping me launch Informed Delivery campaigns for my clients. I am a small direct mail marketing agency specializing in helping my clients find and retain new customers with direct mail. Informed Delivery is the best thing the post office has come up with in my 30+ years in the business. However, just like everything else with the post office, they don't make it easy. AccuZIP has made doing these digital campaigns very simple. I have analyzed campaign results and found the price per click through to the client's website less than an Adword campaign. I am looking forward to working with AccuZIP and their entire Professional Services Team with more clients and campaigns.
S.R., Raleigh, NC