...ifyoudon'tallowmultipleaccountswiththesameemailaddress,ausercannotcreateanewaccountthatsignsinusingaGoogleAccountwiththeemailaddressex@gmail.comiftherealreadyisanaccountthatsignsinusingtheemailaddressex@gmail.comandapassword.我能够使用已通过电子邮件提供商注册的同一电子邮件登录Google提供商，因此Google提供商替换了电子邮件提供商，后者随后无法登录Fi