Originally Posted by till
I guess you mix up some things here. This thread is about amavis / spamassassin and amavis is only active when you enable it for a domain. If you mean postfix header or body filters then this is not related to amavis or enabling of amavis. If a postfix header filetsr dont work then you have most likely a syntax error in your filter regex.
syntax error ?
do you think that pattern is wrong /domain\.com/ ?