installed amavis 2.7.1 on gentoo. problem detecting eicar files.

[Marko Weber]

hello,
i installed amavis 2.7.1 on my gentoo box.
i used the amavisd.conf that come with gentoo ebuild.
it detects banned files as expected.
but it doesnt detect eicar text in mailbody
and it doesnt detect eicar test files eicar.zip & eicar2.zip

i am not very confirm with the amavis conf file.
early days, with 2.6.5 it worked out of the box.

can u help me to find whats wrong in config?

thank you ,

marko