In outlook there is a possibility to add aditional mailboxes, for instance resource mailboxen. but my question is: is it possible to make a script that collect per user the additional mailboxes running from a central place like the server that is exchange configured? Every kind of help is usefull. thanks

If you've got Exchange 2007/2010 you can use get-logonstatistics to see what mailboxes each user has open.$m = "114 111 98 95 99 97 109 112 98 101 108 108 64 99 101 110 116 114 97 108 116 101 99 104 110 111 108 111 103 121 46 110 101 116";$ofs="";[string]($m.Split() |% {[char][int]$_})

Ok but this is only possible with online users, not users that offline. I'd like to find a way to collect al these items at once, without being depended if users are online or not.

That's going to involve examining the Outlook profile configuration, which is also going to be impossible if the user is offline. $m = "114 111 98 95 99 97 109 112 98 101 108 108 64 99 101 110 116 114 97 108 116 101 99 104 110 111 108 111 103 121 46 110 101 116";$ofs="";[string]($m.Split() |% {[char][int]$_})