Peter Pluta wrote:
>
> Thanks, I got these.
>
> reject_rbl_client zen.spamhaus.org
> reject_rbl_client list.dsbl.org,
> reject_rbl_client bl.spamcop.net,
> reject_rbl_client sbl-xbl.spamhaus.org
>
>
>

sbl-xbl.spamhaus.org is contained within zen.spamhaus.org. Therefore you
are doing an extra, unnecessary DNS check.