How can the DCC be used with mail user agents?
Dccproc can be used with any mail user agent that can check mail headers. For example, WD Baseley sent a note to the DCC mailing list on how to configure Eudora to act on X-DCC header lines. Bharat Mediratta has developed DeepSix for people using mail user agents on UNIX boxes connected remote servers such as corporate Exchange servers. See his project on Sourceforge as well as his announcement in the DCC mailing list.