[Mimedefang] Problem running virus scanner

[Alberto Ugarte]

Hello, 

I'm using mimedefang version 2.42 compiled without antivirus because I only want to filter extensions but it doesn't work. This is the error:

mimedefang.pl[31452]: Problem running virus scanner: code=126, category=swerr, action=tempfail
mimedefang.pl[31452]: filter: i4398rmU008368:  tempfail=1
mimedefang[8370]: i4398rmU008368: Tempfailing because filter instructed us to
sendmail[8368]: i4398rmU008368: Milter: data, reject=451 4.3.0 Problem running virus-scanner

Any suggestion?

Sorry for my english, and thanks in advance.
Alberto Ugarte.