spam_kill_level_maps

[Per olof Ljungmark]

We would like to have a different kill level for a couple of users, not
sure how to do that properly.

Tried

$sa_kill_level_deflt = 5.2; # triggers spam evasive actions

@spam_kill_level_maps = (
 {
   'adre...@example.com'   => 4.0,
   'adre...@example.com'   => 4.0,
   'adre...@example.com'   => 4.0,
   '.'   => \$sa_kill_level_deflt,
 }
);

But that did not work as expected, default kill level became
kill=34453251368

Anyone has a hint please?

Thanks!