question about the checksum mechanism of dcc

hi together,

i would like to install a kind of spam-trap in our company. the idea 
behind that is: there is an email-account an every mail that goes to 
that account ist
automatically reported as spam to dcc. the question i have, is it a 
problem for dcc that the reported sender is not the original sender of 
the spam mail?
the program that does the reporting is spamassassin.

thanks for any answers

alex