Match a data (email) with the user's email submission

Hello everyone,

So I am trying to build a simple website where basically people can submit an email and see if the email is verified or not. The idea of this is to help jobseekers to verify whenever they received an email from a certain company, offering a job for example, an avoid a scam. I’m aware that I need a database of those verified email list of companies, however, as I’m new to Bubble (and development in general), I just would like to know if it’s possible and would really appreciate if anyone could help me explain how to do that. Thanks!