批量为通讯组添加RejectMessagesFromSendersOrMembers成员

批量为通讯组添加RejectMessagesFromSendersOrMembers成员，此操作不会覆盖原来的配置，只是增加

$groups= Get-DistributionGroup -ResultSize unlimited

foreach($group in $groups) {

$current= $group.RejectMessagesFromSendersOrMembers

$current+= 'RejectSendEmailToGroup'

Set-DistributionGroup$group -RejectMessagesFromSendersOrMembers $current

如果想直接覆盖原来的配置可使用以下脚本

$RejectGroupOrUser="RejectSendEmail"

Get-DistributionGroup  | foreach{Set-DistributionGroup -Identity $_.name -RejectMessagesFromSendersOrMembers $RejectGroupOrUser}