Next step, try to resolve s-s.mx and check your logs. Like /var/log/syslog?
Aki > On 05/01/2020 7:09 PM Sergio Cesar <ser...@winc.net> wrote: > > > Thank you for the reply. > > Here it is, not sure what that means. > The recursor is running on the same server as the PDNS with a different > IP address. if that makes a difference. > > root@ns1:~# rec_control trace-regex s-s.mx > ok > ok > ok > > On 5/1/2020 11:37 AM, Aki Tuomi wrote: > >> On 05/01/2020 6:31 PM Sergio P Cesar via Pdns-users > >> <pdns-users@mailman.powerdns.com> wrote: > >> > >> > >> I am new with pdns, just installed a resolver 4.3.0-rc2 to learn and all > >> seems to work but stumbled into an issue I cant resolve. > >> > >> My mailserver failed to deliver email to a few domains, in tracking it I > >> found that their DNS will drop the first packet on every new query but > >> will respond on a second query ok and every one after that. (5 minutes > >> timeout) it will drop the 1st packet again. > >> I was expecting the recursor to query the 2nd and 3rd server in their > >> list but it does not look like it is doing that. > >> It seems like it is caching the failure and does not query again at all > >> for a while. > >> I changed packetcache-servfail-ttl=0 and now it looks like after the 3rd > >> query attempt it will work as the far end server now respond. > >> Not sure this is correct setting or I will have adverse effect setting > >> this to 0. > >> > >> Perhaps I have not set something else that will tell the recursor to try > >> the next server if the first one fail to respond or send a second packet > >> or a retry. > >> I used bind to test and it gets a response on the first try. I did not > >> try to trace the packets from a bind query. > >> > >> Thanks > >> > >> > > > > Try `rec_control trace-regex domain.com` and post that. Without censoring > > the results. > > > > Aki _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com https://mailman.powerdns.com/mailman/listinfo/pdns-users
