Just forward them to any mod here (online mod) as that is the best option you have. http://forums.digitalpoint.com/showgroups.php DON.
Yes i get them at least thrice a month but when ever i check them the person behind that must be banned at that time .. hats off for all these mods for there quick work on keep DP clean !!
Just now forwarded a spam message to one of the mods. People sending spam PMs come to this forum not to learn or share their knowledge but they spam others inbox with PMs before starting to post but they are just banned afterwards...