DNS Query Question
David Ulevitch
davidu at everydns.net
Thu Jan 18 19:12:12 UTC 2007
Dennis Dayman wrote:
>
> I have a customer having some DNS issues. They have done some research
> regarding some DNS timeout errors they saw with Verizon's sender verify
> looking up their MX records. What they have discovered is their current
> DNS service has a 1% failure/timeout rate. They are exploring other
> vendors (UltraDNS for one), but need an estimate of the number of DNS
> queries for accurate pricing to put together a ROI argument for the
> switch.
>
> I have no IDEA if this can be determined, but what is a good estimate of
> the number of DNS queries generated from sending an email?
That's not a good tack to take to figure out the answer.
Just check the logs of your current DNS server and count 'em up.
UltraDNS isn't cheap. But neither is downtime, I suppose.
-david
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