Mailscanner / Sophos unexpected error

[Bagt]

hi,

I have this error

Report: Sophos: Could not check file.zip/manual program.pdf (unexpected
error [0x80040202])

It's the first time, my server has > 50'000 messages analyze.

in my Mailscanner.conf
----------------------
....
Allowed Sophos Error Messages = "corrupt"
...


Sophos Version
--------------

Product version           : 3.76
Engine version            : 2.17
User interface version    : 2.07.031
Platform                  : Linux/Intel
Released                  : 01 December 2003
Total viruses (with IDEs) : 86261


How can I fix it ? ( Allowed Sophos Error Messages = "corrupt", "unexpected
error" )

It's only a problem for PDF files ?

Thanks.