# Allow insecure tainted data
exim -DALLOW_TAINTED=no -f hans@example.com -be 
${lookup{$sender_address_local_part}lsearch{DIR/aux-fixed/0990/$sender_address_domain}{yes}{no}}
****
exim -DALLOW_TAINTED=yes -f hans@example.com -be 
${lookup{$sender_address_local_part}lsearch{DIR/aux-fixed/0990/$sender_address_domain}{yes}{no}}
****