"sophie -f 42.zip" vs "scan_file /var/run/sophie 42.zip"

Hi,

I realized, that sophie (3.0.4rc2, Sophos 3.78, Solaris) cannot 
cope with compression bombs like 42.zip when invoked with 
"-f <42.zip>". It runs at high CPU load until "timeout" is 
reached , filling up /tmp with large files. The same applies 
to my MIMEdefang/sophie installation, where sophie does not 
finish cleanly on 42.zip, thus causing a temporary SMTP error. 

However, sophie has no problems when scanning the 42.zip file via
socket connection. When fed by sock.pl or scan_file, it correctly 
stops with "loop_decompr_limit reached".

My savi settings for ZIP handling are

| GrpArchiveUnpack                  |    9 |   2 |
| ZipDecompression                  |    3 |   1 |
| ZipUseChd                         |    3 |   1 |


What needs to be done such that MIMEdefang/sophie and "sophie -f"
no longer fail on 42.zip?

Regards,

-Juergen