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Re: [Samba] Samba AD Internal DNS, Postfix & Email Relay




Hai Marco, 

For you own domains, dont point postfix to your internal DNS only, 
if done wrong you might miss dns info on the wan side and thats mostlikely your error .

Setup a caching DNS and setup a forward zone to internal.domain.tld and domain.tld. ( internet dns ) 
That makes sure that you dont break DKIM/DMARC/SPF/TLSA on the internet side. 


Greetz, 

Louis


> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces@xxxxxxxxxxxxxxx] Namens 
> Marco Shmerykowsky via samba
> Verzonden: zondag 24 februari 2019 23:59
> Aan: samba@xxxxxxxxxxxxxxx
> Onderwerp: [Samba] Samba AD Internal DNS, Postfix & Email Relay
> 
> 
> Is there an extra step which must be taken to get postfix
> to deliver email via a relay host when the postfix machine
> is pointing to an samba internal DNS?
> 
> I did a test setup using a public DNS server and it worked.
> Same setup where the machine (Debian 9) is pointing to a
> samba DNS doesn't work.  The errors in the postfix log
> seem to be DNS related.
> 
> Thanks,
> 
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