Because we do have massive problems with signatures in gw accounts that
cannot be deleted I searched the forums. in client7 I found a note that
gwcheck with option clearsig might help.

I tried it against one of the faulty accounts but no signatures will be

also I couldnt find documentation about this parameter in the knowledge
base, so I wonder how to get this parameter working?

Using groupwise server 8SP1 and 7.03 Clients and V8 Clients.