On 12/29/2016 02:16 AM, Alessandro Vesely wrote:
From that, I derive that production mail servers should run a caching[*] DNS
server/locally/. That's also necessary for DNSxL, SPF, DKIM, and the like.
Do you agree?
I think that a caching DNS server should be as near as possible to the
email server, but I don't personally run them on the same host in most
cases. I know plenty of people who think it's best practice, but I
don't have any strong feelings on the topic.
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