Quintessential Mailing Software Incorporated



QMSI products provide accurate, cost-effective CASS™ and PAVE™ Certified
Address Verification and Presort Discount processing for z/OS and z/VSE.


QCODE is the only zIIP eligible CASS engine - for even more savings!
We commonly reduce hours of processing to just minutes.

CASS processing is FREE on a zIIP - for even more savings!
We commonly reduce hours of processing to just minutes.



Solution Areas:

  • Application and Infrastructure Modernization
  • Business Resilience
  • General Business
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