Files hidden in very deeply nested archive ?

[Muenz, Michael]

Hi,

one of my users sent me a Warning from Mailscanner,
with the text:
Files hidden in very deeply nested archive

This message come from Mailscanner, not the Virusscanner.
How can i configure Mailscanner to allow such attachments ?
In Message.pm I found something about maxlevels (zip files),
but I've disabled this value in my conf.
Any ideas ?
Thanks ...

Michael