{
    $qpsmtpd = $DB->get('qpsmtpd');
    return unless $qpsmtpd;
    return unless $qpsmtpd->prop('SBLList');

    @sbl = grep { !/blackhole.securitysage.com$/ } split /[,:]/, $qpsmtpd->prop('SBLList');
    $qpsmtpd->set_prop('SBLList', join ':', @sbl);
}
