本来要创建一个transport rule
代码如下：
$Condition = Get-TransportRulePredicate FromAddressContains
$Condition.words = @("externaluser1@gmail.com","externaluser2@gmail.com")
$Condition1 = Get-TransportRulePredicate SentTo
$Condition1.addresses = @(get-mailbox xunyang)
$Action = Get-TransportRuleAction DeleteMessage
New-TransportRule -Name "Deny Senders to Cellulardeals" -Condition @($Condition,$condition1) -Actions @($Action)看起来是没有问题的吧
结果遭遇错误The sequence of predicates is invalid
换一下代码后（其实就是两个条件位置换了一下）：
$Condition = Get-TransportRulePredicate SentTo
$Condition.addresses = @(get-mailbox xunyang)
$Condition1 = Get-TransportRulePredicate FromAddressContains
$Condition1.words = @("externaluser1@gmail.com","externaluser2@gmail.com")
$Action = Get-TransportRuleAction DeleteMessage
New-TransportRule -Name "Deny Senders to Cellulardeals" -Condition @($Condition,$condition1) -Actions @($Action)ok了。
原因嘛：
还是transport rule比较傻，必须先得send to，然后才能from包含。如果你也遇到这个问题，没办法了，把步骤换一下就可以了。