anyone else have this happen?

suddenly one of our filers stops generating autosupport messages.  both autosupport.enable and autosupport.support.enable are on.  if i generate a test email with the autosupport.doit option nothing happens.  not even a failed message, the console just sits there as if i never generated one.

needless to say neither netapp or our email server gets anything from this filer and nothing hits the console about generating any autosupport emails.