This goes both ways. I get emails, LinkedIn messages from recruiters and I could tell which recruiters mass emailed to candidates and used a generic template.

This goes both ways. I get emails, LinkedIn messages from recruiters and I could tell which recruiters mass emailed to candidates and used a generic template. They are probably just playing the numbers game. Since they didn't care enough to at a minimum change or add one or two sentences to make the email unique to my skill set, they didn't get far in their recruiting efforts.