The idea is great if you are willing to hand over your email credentials. Yikes. If this is your primary email address this is a serious security breach. Chances are you have all sorts of sensitive emails in there related to personal finances, bank and/or investment accounts, insurance policies, personally identifiable information, passwords to other sites, etc. Not to mention basically any site you use will use your primary email address as the default method for identifying you or recovering/resetting lost passwords which basically gives anyone with your credentials the ability to take over your online presence entirely. Super sketchy for the minor benefit.