Known Issues List 8.27.2026

Mail.XML Validations R49

Mail.dat Validations R49

Mail Quality Data through IV-MTR Error Codes

The attached is a listing of error codes. It identifies which codes are currently available in MQD-IV provisioning and also whether the error codes are also available in the drills from the Mailer Scorecard.

Mail.XML Validations R48

Validations for mail.XML pertaining to R48 of PostalOne!.

Mail.dat Validations R48

Validations for mail.dat pertaining to R48 of PostalOne!.

Mail.dat Validations R47 (PDF Version)

Postal Service eDoc Error Codes

Mail.dat Validations R47 (Excel Version)

Mail.dat error codes