If you process Mail.dat® files through PostalOne!®, we can help!

Did you know?

For 30 years, Window Book has been improving the operational efficiency of North America’s mailers. Today, over 50% of USPS mail goes through Window Book software!

Call 800.524.0380 or select an option above for more details on how we can help your business thrive!

Here are just a few of the ways Window Book can improve the workflow in your mailing operation:

Automate and submit multiple Mail.dat files to PostalOne!, simultaneously.

Receive automated delivery of PostalOne! UPD and finalized (FIN) statements, confirmation pages, XML files, etc.

Edit Mail.dat files using our DAT-MAIL™ Editor and stop wasting time re-running files through Presort.

Use Quick-Fix™ to correct Mail.dat validation errors in real time.

Notify staff of PostalOne! upload errors/successes automatically via email or text.

Integrate your postage data with other internal systems (accounting, customer service, etc.) for a seamless workflow.

Create a fully lights-out environment where files are processed, uploaded and postage statements are returned with no human interaction.


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