Mail::SpamAssassin::Plugin::DCC(3)

NAME
Mail::SpamAssassin::Plugin::DCC - perform DCC check of messages

SYNOPSIS
  loadplugin     Mail::SpamAssassin::Plugin::DCC

DESCRIPTION
The DCC or Distributed Checksum Clearinghouse is a system of servers collecting and counting checksums of millions of mail messages. The counts can be used by SpamAssassin to detect and reject or filter spam.

Because simplistic checksums of spam can be easily defeated, the main DCC checksums are fuzzy and ignore aspects of messages. The fuzzy checksums are changed as spam evolves.

Note that DCC is disabled by default in "init.pre" because it is not open source. See the DCC license for more details.

See http://www.rhyolite.com/anti-spam/dcc/ for more information about DCC.

USER OPTIONS

use_dcc (0|1)		(default: 1)
    Whether to use DCC, if it is available.

dcc_timeout n		(default: 8)
    How many seconds you wait for DCC to complete, before scanning continues without the DCC results.

dcc_body_max NUMBER
dcc_fuz1_max NUMBER
dcc_fuz2_max NUMBER
    This option sets how often a message's body/fuz1/fuz2 checksum must have been reported to the DCC server before SpamAssassin will consider the DCC check as matched.

    As nearly all DCC clients are auto-reporting these checksums, you should set this to a relatively high value, e.g. 999999 (this is DCC's MANY count).

    The default is 999999 for all these options.

ADMINISTRATOR OPTIONS

dcc_home STRING
    This option tells SpamAssassin specifically where to find the dcc homedir. If "dcc_path" is not specified, it will default to looking in "dcc_home/bin" for dcc client instead of relying on SpamAssassin to find it in the current PATH. If it isn't found there, it will look in the current PATH. If a "dccifd" socket is found in "dcc_home", it will use that interface that instead of "dccproc".

dcc_dccifd_path STRING
    This option tells SpamAssassin specifically where to find the dccifd socket. If "dcc_dccifd_path" is not specified, it will default to looking in "dcc_home" If a "dccifd" socket is found, it will use it instead of "dccproc".

dcc_path STRING
    This option tells SpamAssassin specifically where to find the "dccproc" client instead of relying on SpamAssassin to find it in the current PATH. Note that if taint mode is enabled in the Perl interpreter, you should use this, as the current PATH will have been cleared.

dcc_options options
    Specify additional options to the dccproc(8) command. Please note that only characters in the range [0-9A-Za-z ,._/-] are allowed for security reasons.

    The default is "undef".

dccifd_options options
    Specify additional options to send to the dccifd(8) daemon. Please note that only characters in the range [0-9A-Za-z ,._/-] are allowed for security reasons.

    The default is "undef".