Since 2006 hpc DUAL has been leader in terms of market, technology and value proposition for “dual mail delivery” services. With the development of its product “BriefButler” (German for “letter butler”) hpc DUAL has created a disruptive business model that has opened up enormous savings potential to public administration and private businesses through the smart combination of electronic and physical delivery. The Brief Butler’s core element is the “SendStation”. The SendStation receives electronic documents and recipients’ address details, processing them through the most cost-effective delivery channel. With its Track & Trace service BriefButler offers full transparency and traceability, as well as full compliance with legal standards for registered mail delivery. This applies to both the electronic and physical channel (dual mail delivery).