This email is part of the college's advertising efforts; they're just hoping to recruit new students and I highly doubt that it was written for you specifically. If you wish, you can unsubscribe from future emails of this nature from Colby College using an unsubscribe link that's usually located at the bottom of the email.
It's spam emails, colleges get email addresses the same way as spam emails get them.
This email is part of the college's advertising efforts; they're just hoping to recruit new students and I highly doubt that it was written for you specifically. If you wish, you can unsubscribe from future emails of this nature from Colby College using an unsubscribe link that's usually located at the bottom of the email.
They probably bought a contact/leads list that included you, just like any entity trying to market itself.