OpenDKIM for Debian (32-bit) is an open source implementation of the DKIM (Domain Keys Identified Mail) sender authentication system proposed by the E-mail Signing Technology Group. OpenDKIM for Debian (32-bit) package consists of a library that implements the DKIM service and a milter-based filter application that can plug in to any milter-aware MTA to provide that service to sufficiently recent sendmail MTAs and other MTAs that support the milter protocol. It hosts a data collection facility for sites that wish to volunteer their data. These data are used as feedback to the Internet Engineering Task Force to develop new reputation standards.