Some user must have accidentally moved a mail (sub)folder from an account to his own account. I know the name of that folder. Is it possible to do a global search of this folder in every mailbox in the whole Exchange organization?

Exchange version? $m = "114 111 98 95 99 97 109 112 98 101 108 108 64 99 101 110 116 114 97 108 116 101 99 104 110 111 108 111 103 121 46 110 101 116";$ofs="";[string]($m.Split() |% {[char][int]$_})

Oh sorry. Exchange 2007 SP1 (version 08.01.0375.002)

You might try this: get-mailbox -resultsize unlimited | get-mailboxfolderstatistics | select name,identity |? {$_.name -eq "<foldername>"}$m = "114 111 98 95 99 97 109 112 98 101 108 108 64 99 101 110 116 114 97 108 116 101 99 104 110 111 108 111 103 121 46 110 101 116";$ofs="";[string]($m.Split() |% {[char][int]$_})

Great! That works!