Blocking ZIP within ZIP

[Ekkehard Burkon]

Hi,

is it possible to block ZIPs within ZIPs?

As far as I understand it amavis unpacks everything an then trys to find out
if the files are banned or not.

Since we have seen now some of those crypto trojans that consist of a zip
within a zip and within some varible executable code which is not allways properly
recognized.

Blocking ZIPs alltogether is some kind of rude.

Thanks
    Ekkehard



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