Background check for any email

@google-yasmeenbano what are you asking exactly? Can you give examples of what you want to do?

If we  have someone unknown person's gmail only and we have to deal with him or her for some payment transaction but if we have to check either he or she is genuine or fake then I want to check his or her other online presence like social media profiles, occupation, physical location etc. then is it possible to find from any method? I have IP address also. 

@google-yasmeenbano with gmail your best bet is to send email to the address to determine if it is valid. There are many blogs about the subject and offers to check the email for you. I'm using a Python module py3-validate-email but it isn't 100% correct. You also have to be cautious of the catchall email addresses that will accept email but not be a valid email address such as anyemailaddress@gmail.com.com which resolves to several Linode servers. Good luck.