Distributed Checksum Clearinghouse

Distributed Checksum Clearinghouse or DCC is an incredible system for keeping track of checksums that are attached with mail messages. The system includes clients and servers that make use of these checksums and count them as well. One of the biggest advantages of using DCC is that the counts of the checksums can be used to detect bulk mail and easily reject them through SMTP servers or mail user agents.

DCC servers also allow the exchange of common checksums which helps in detecting bulk mail more effectively. Moreover, the checksums that are used in DCC include values that are "fuzzy" which means that they remain constant even in common variations in bulk mail messages. This feature of fuzzy checksums makes it easy for the software to detect and prevent bulk mail from reaching users.

Overall, the DCC system offers a reliable and efficient way of identifying and rejecting unsolicited spam messages. The software is ideal for businesses, organizations, and individuals looking for a reliable solution that can be easily integrated into their existing mail system. So, if you're looking for a software solution that can protect your mailbox from bulk mail, DCC is an excellent choice.