Need to find exact reason of Spam score

I am working for services website and planning to collaborate with online magazine and get blogs about our services and backlink. This digital magazine is specially for lifestyle blogs having DA 51 and spam score 67%. I need a suggestion. Should I do collaboration with this spam score. Is it safe to get backlink from the website with this 67% spam score? How could we find the real cause of the spam that digital magazine(we don't own)? WordPress ...