On 04/11/2017 10:15 PM, Tony Finch wrote:
On 11 Apr 2017, at 20:39, Florian Weimer <fwei...@redhat.com> wrote:
On 04/11/2017 09:15 PM, Tony Finch wrote:
That doesn't work if the web server is at 3rd party provider A but you want
provider B's mail service not provider A's.
I don't understand.
I think it boils down to who operates the target DNS zone and how flexible they
are. It has nothing to do with who runs the web server.
In many cases the ANAME target will be a mass web hosting provider which
doesn't have any flexibility in their DNS setup.
And in order to accommodate them, we upgrade the DNS server
infrastructure across the Internet?
I understand that's how things work in practice, but I don't kike it.
And you still don't want CNAME pointing at MX because of the interop problems.
CNAME to MX is fine. Isn't this what's relevant here?
Thanks,
Florian
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