##
## Report-DistributionGroupsAndMembers.ps1
## v1.1

##
## Michael B. Smith
## http://TheEssentialExchange.com
## August, 2010
##
## Requires Exchange Management Shell
## Should work with either PowerShell v1 or v2
## Tested on both Exchange 2007 and Exchange 2010

##

function formatManager($formatstring, $manager)
{
	$formatstring -f $manager.Name, ($manager.Parent.ToString() + "/" + $manager.RDN.ToString().SubString(3))
}

Get-DistributionGroup -ResultSize Unlimited |% {
	$group = $_
	"Group Name & Identity: {0}, {1}" -f $group.Name, $group.Identity
	$managedBy = $group.ManagedBy
	if( $managedBy -is [Microsoft.Exchange.Data.Directory.ADObjectId] )
	{
		formatManager "Group manager: {0}, {1}" $managedBy
	}
	elseif( $managedBy.Count -gt 1 )
	{
		[bool]$first = $true
		foreach( $manager in $managedBy ) 
		{
			if( $first ) 
			{
				formatManager "Group managers: {0}, {1}" $manager
				$first = $false
			}
			else
			{
				formatManager "                {0}, {1}" $manager
			}
		}
	}
	elseif( $managedBy.Count -gt 0 )
	{
		formatManager "Group manager: {0}, {1}" $managedBy[0]
	}

	"Members:"
	Get-DistributionGroupMember -Identity $group.Identity -ResultSize Unlimited |% {
		foreach( $member in $_ )
		{
			"`t$($member.Name)"
		}
	}
	"---"
}