School email or personal email to get in contact with connections?

Just recently I had a couple people give me their emails and business cards to connect with if I needed advice within career paths or internships in the future. The issue is I am unsure if I shpuld use my personal email (google) or my school email (my uni). Personal is the easiest, but I feel it may be ignored due to people thinking it might be some spam email. School email is probably the best way to go, but if I need to contact people after my time it up at the uni, I wouldn't be able to access the email. Which one is the best way to go about it?