I don't know about corporate email address. how to create a Google corporate email address and use like a mail .because i want to sign up to Google partner training website not allow to sign in with simple mail id . so can you suggest alternative options to join the training.
Go to Partner training page[2] and click on register as a new portal user and sign up with the ID you just created.
[1]https://accounts.google.com [2]https://www.partneradvantage.goog/GCPPRM/s/partneradvantageportallogin?language=en_US