In an HowTo (http://www.df.eu/de/service/df-faq/cloudserver/anleitungen/spam-und-virenschutz-mit-postfix-debian/), I've read that I've to configure /etc/amavis/conf.d/15-content_filter_mode to activate ClamAV with AMaViS. I thougt this was made out of the Box in ispconfig, cause I can choose for each Mailaccount the spam-level, and ClamAv is installed by default an running (with freshclam). But If I've looked into this file, i found that the @bypass-lines for virus_checks and spam_checks are still not active. Does ispconfig set this parameters in another place? How can I check my system for working in right way with virus and spam?