由于没有其他的设备，用关键词的效果还是可以接受的。
24.去除匿名中继的权限（去除仿冒内部邮件地址）
==========
Get-ReceiveConnector "Internet Receive Connector" | Remove-ADPermission
-User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights
"Ms-Exch-SMTP-Accept-Any-Recipient"
25.去除接收匿名邮件域发送者的权限（对过滤垃圾邮件有一定作用）
==========
Get-ReceiveConnector "Internet Receive Connector" | Remove-ADPermission
-User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights
"ms-exch-smtp-accept-authoritative-domain-sender"
