On April 8, 2021 8:29:09 AM GMT+02:00, Maurizio Caloro <mauri...@caloro.ch> 
wrote:
>Hello
>
>I have the issue with mail from Outlook, or Hotmail this Warning appair
>and
>the mail don't deliver to me.
>
> 
>
>Apr  8 08:04:24  ail postfix/dnsblog[7379]: warning: dnsblog_query:
>lookup
>error for DNS query 109.75.92.40.list.dnswl.org: Host or domain name
>not
>found. Name service error for name=109.75.92.40.list.dnswl.org type=A:
>Host
>not found, try again
>
> 
>
>Apr  8 08:23:10 ail postfix/dnsblog[7943]: warning: dnsblog_query:
>lookup
>error for DNS query 42.89.92.40.list.dnswl.org: Host or domain name not
>found. Name service error for name=42.89.92.40.list.dnswl.org type=A:
>Host
>not 
>
>found, try again
>
> 
>
>postscreen_dnsbl_sites = zen.spamhaus.org*3
>
>        b.barracudacentral.org*2
>
>        bl.spameatingmonkey.net*2
>
>        bl.spamcop.net
>
>        dnsbl.sorbs.net
>
>        psbl.surriel.com
>
>        bl.mailspike.net
>
>        list.dnswl.org=127.0.[0..255].0*-2
>
>        list.dnswl.org=127.0.[0..255].1*-3
>
>        list.dnswl.org=127.0.[0..255].[2..3]*-4
>
> 
>
>root@nmail:/etc/postfix# ping 42.89.92.40
>
>PING 42.89.92.40 (42.89.92.40) 56(84) bytes of data.
>
>181 packets transmitted, 0 received, 100% packet loss, time 482ms
>
> 
>
>root@nmail:/etc/postfix# cat /etc/resolv.conf
>
>nameserver 8.8.8.8
>
>nameserver 46.38.225.230
You should not use public dns servers to query dnsbls as they are likely 
blocked due to excessive query volume at the dnsbl. Install and use a local 
resolver like unbound, knot, bind and use nameserver 127.0.0.1 in 
/etc/resolv.conf
> 
>
>regards
>
>Mauri
>
> 
>
> 

-- 
Christian Kivalo

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