New Mail.dat Client Required – Mail.dat Client 184.108.40.206_PROD will be required with this release. All older Mail.dat Client versions will expire. Mailers can download the new client from the Business Customer Gateway (BCG) using the following path: Mailing Services; Electronic Data Exchange [Go to Service]; Mail.dat download (Windows 32-bit, Windows 64-bit or Solaris).
Mail.xml Data Distribution (DD) Files (August 2016 Release 23)
Mailer IDs (MID) and Customer Registration IDs (CRID) Version 1 Release 23 (August 2016)
WSDL (Web Services Description Language) is an XML-based language for describing Web services and how to access them. WSDL is an XML format for describing network services as a set of endpoints operating on messages containing either document-oriented or procedure-oriented information.