@$domain/\
$sender_address} \
nwildlsearch {CONF_userconf_dir/spam-limit} \
- {spam_limit=$value} \
+ {${if match{$value}{\N^-?[0-9]+$\N} \
+ {spam_limit=$value} \
+ {}}} \
{}}} \
{}} \
${if exists {CONF_userconf_dir/spam-limit.userv} \
$local_part \
$local_part_suffix \
@$domain} \
- {${if match{$value}{\N^[0-9]+$\N} \
+ {${if match{$value}{\N^-?[0-9]+$\N} \
{spam_limit=$value} \
{}}} \
{}}} \