It's cool, but I wish there was a way to separate what jobs you want mail for. (different types of programming, marketing, seo, product management, there is a lot of variety.)
Similarly, it would be nice to let students specify whether they are graduate/undergraduate, and maybe their field of study/interest.
I can imagine if I was paying to send an offer out to find people to solve hard CS or math problems for me, I'd be disappointed to find that 90% of the recipients were (for example) undergrad marketing majors.
When applicants receive the jobs in their inbox, when they click on the job to apply...they are asked a number of questions including being grad/undergrad, if they have github profile (for those applying for engineering jobs) and many more.
But we do have a great mix of backgrounds..about 30% marketing and the rest are engineering and design.