第一步，https://docs.microsoft.com/en-us/powershell/exchange/exchange-online-powershell-v2?view=exchange-ps，安装 EXO V2 mode
第二步：Set-ExecutionPolicy RemoteSigned
第三步：Install-Module -Name ExchangeOnlineManagement （https://docs.microsoft.com/en-us/powershell/exchange/connect-to-exchange-online-powershell?view=exchange-ps）
第四步：Import-Module ExchangeOnlineManagement
第五步：Connect-ExchangeOnline -UserPrincipalName howard.wen@heinetworx.com
第六步：Set-TransportConfig -SmtpClientAuthenticationDisabled $false （https://docs.microsoft.com/en-us/powershell/exchange/connect-to-exchange-online-powershell?view=exchange-ps
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