How to Hide/Un hide a distribution Group in exchange 2010 using powershell

To Unhide Use below command

Set-DistributionGroup -IgnoreDefaultScope -BypassSecurityGroupManagerCheck -HiddenFromAddressListsEnabled $false -Identity “Distribution Group Name”

To hide Use below command

Set-DistributionGroup -IgnoreDefaultScope -BypassSecurityGroupManagerCheck -HiddenFromAddressListsEnabled $true -Identity “Distribution Group Name”