Spam Assassin question

I’ve noticed people actually have a fair amount of spamassassin related information in the headers of their emails. Is that a result of a custom Spamassassin install, or is there something I can do to make DH’s version of the software give me the same information, such as exactly what spam checks triggered the flag?

Yes, I have an opinion.

Get a minimum 50% off with the “haveadreamyday” promo code, and… have a dreamy day. Original, no?