* Henri Schomäcker <henri.schomaecker@virtual-homes.de> schrieb:

> Many thanks for any help in advance, maybe you got an idea?

There was a bug in older ClamAV versions:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=194696

I recommend to use the latest version.

PS: I don't read alt.comp.mail.postfix.

Regards, Heiko