-using the malware scanning framework. The option of av_scanner influences
-this option, so if av_scanner's value is dependent upon an expansion then
-the expansion should have defaults which apply to this invocation. Exim will
-have changed working directory before resolving the filename, so using fully
-qualified pathnames is advisable. Exim will be running as the Exim user
-when it tries to open the file, rather than as the invoking user.
+using the malware scanning framework. The option of &%av_scanner%& influences
+this option, so if &%av_scanner%&'s value is dependent upon an expansion then
+the expansion should have defaults which apply to this invocation. ACLs are
+not invoked, so if &%av_scanner%& references an ACL variable then that variable
+will never be populated and &%-bmalware%& will fail.
+
+Exim will have changed working directory before resolving the filename, so
+using fully qualified pathnames is advisable. Exim will be running as the Exim
+user when it tries to open the file, rather than as the invoking user.