";
$address = $VARS['a'];
engageRateLimit();
if (!filter_var($address, FILTER_VALIDATE_EMAIL)) {
die("Invalid email address.");
}
$address = str_replace("%", '\%', $address);
if ($database->has('addresses', ['email' => $address])) {
$count = $database->count('addresses', ['email' => $address]);
$database->delete('addresses', ['email' => $address]);
die("$address has been removed from $count mailing " . ($count === 1 ? "list" : "lists") . ".");
} else {
die("$address has already been removed.");
}
} else {
?>
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