creazione cartella (errore)

[Mr.Fabio]

Dim fso
Set fso = Server.CreateObject("Scripting.FileSystemObject")

Dim FolderVirtualPath 

FolderVirtualPath = "/public/immagini/" & email &"/"

Dim FolderPhysicalPath
FolderPhysicalPath = Server.mapPath(FolderVirtualPath)

fso.CreateFolder(FolderPhysicalPath)

ERRORE:

Server.MapPath() error 'ASP 0174 : 80004005' 

Invalid Path Character(s) 

/public/inserimento/upload.asp, line 72 

An invalid '/' or '\' was found in the Path parameter for the MapPath method.

la linea 72:

FolderPhysicalPath = Server.mapPath(FolderVirtualPath)

[Mr.Fabio]

risolto grazienon so come levare il post