YouhaveanExchangeServer2010organization.YouacquireanewInternetdomainname.Usersreportthattheycannotreceivee-mailsenttothenewdomainname.Youverifythatallusershavethenewdomainnameconfiguredasane-mailaddresssuffix.Youneedtoensurethatuserscanreceivee-mailsentfromtheInternettothenewdomainname.Whatshouldyoucreate？（）
A.anAuthoritativeAcceptedDomain
B.anExternalRelayAcceptedDomain
C.anewReceiveconnector
D.aremotedomain
参考答案：A
