I need to get all mailboxes, and witch group there are member of.
You need Quest ActiveRoles Management Shell for this to work:
http://www.quest.com/powershell/activeroles-server.aspx
Add-PSSnapin Quest.ActiveRoles.ADManagement -ErrorAction SilentlyContinue
$File = "C:\groupslog.txt"
$Mailboxes = Get-mailbox -resultsize unlimited | select sAMAccountName,name,alias
$Mailboxes | ForEach {
$User = Get-QADUser -samaccountname $_.sAMAccountName | Select sAMAccountName, memberOf
$Line = $_.sAMAccountName
ForEach ($GroupDN In $User.memberOf)
{
$Group = (Get-QADGroup $GroupDN | Select sAMAccountName).sAMAccountName
$Line = "$Line,$Group"
}
echo $Line
} | out-File $File
In the file c:\groupslog.txt each line is a mailbox, and the first entry is the sAMAccountName, and each entry after this is the group the Mailbox is member of.