Nevermind, I found the entry:
use_dcc { 0 | 1 } (default: 1)
Whether to use DCC, if it is available.
dcc_timeout n (default: 10)
How many seconds you wait for dcc to complete before you go on
without the results.
dcc_body_max NUMBER
dcc_fuz1_max NUMBER
dcc_fuz2_max NUMBER
DCC (Distributed Checksum Clearinghouse) is a system similar to
Razor. 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.
