使用PowerShell连接Exchange 2019 EWS时出错

Question

我从2016年的Exchange迁移到2019年。我有一个PowerShell脚本，用于使用EWS连接到exchange以访问用户的收件箱。它在连接时一直失败。我试着看看从2016年到2019年是否有什么不同，但结果是空的。这里是我用来连接到2016年的代码

Add-Type -Path "C:\Program Files\Microsoft\Exchange\Web Services\2.2\Microsoft.Exchange.WebServices.dll"
$User_Domain = "domain"
$Password = "user_pass"
$EWS = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService -ArgumentList "Exchange2013"
$EWS.Url = "https://mail19.server.com/EWS/Exchange.asmx"
$Username = "username"
$EWS.Credentials = New-Object System.Net.NetworkCredential -ArgumentList $Username, $Password, $User_Domain

$inbox = [Microsoft.Exchange.WebServices.Data.Folder]::Bind($EWS,[Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::Inbox)

Exception calling "Bind" with "2" argument(s): "The request failed. The underlying connection was closed: An unexpected error occurred on a send."
At line:1 char:1
+ $inbox = [Microsoft.Exchange.WebServices.Data.Folder]::Bind($EWS,[Mic ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ServiceRequestException

Answer 1

好吧，在网上搜索之后，似乎Exchange 2019强制执行TLS1.2是个问题。我在powershell脚本中添加了以下一行，错误就消失了

[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;

希望这能帮助其他人