Re: Issue with AT IPs?

I would say route advertisements for the failing addresses are not making it the point in the network where traceroute fails. At this point you need to see if you can find a looking glass for that net to check the BGP route announcements for the failing addresses and possibly escalate to that

RE: Issue with AT IPs?

I don't disagree with what you say about nameserver diversity but don't feel that is the issue here and is missing the point in my question. I'd already eliminated "lookup" of the DNS servers by going straight to the IP they share. Connections from locations outside our network to that IP port

Re: Issue with AT IPs?

Am 05.12.2017 um 20:21 schrieb Barry S. Finkel: The problem is not with the "two" name servers for the domain you are trying to reach.  Note the quotation marks. I was able to contact the ONE IP address and get a DNS response.  If, for some reason, you do not have a path to that IP address,

Re: Issue with AT IPs?

On 12/5/2017 "Lightner, Jeffrey" wrote: We're having issues send email to a user @SIDDHAFLOWERS.COM Investigation here shows that the issue we have is querying your name servers (both by name and by IP) are refusing to respond to our name servers. Their name

RE: Issue with AT IPs?

DNS, by design, is generally speaking agnostic when it comes to providing answers to DNS questions. It would have to be a very deliberate edit to the "allow-query" option in the conf file to enable your construct of a "DNS blacklist". In an enterprise environment this type of defensive action

Re: Issue with AT IPs?

Hi Jeffrey, I had same kind problems with my domain "smallfusion.net". It's resolving at few places, mostly it's saying connection timed out; no servers could be reached. Well it's very strange. I'm using Cloudflare.com services with this domain. ___

Issue with AT IPs?

We're having issues send email to a user @SIDDHAFLOWERS.COM Investigation here shows that the issue we have is querying your name servers (both by name and by IP) are refusing to respond to our name servers. Their name servers: NS1.QUICKFIX8.COM NS2.QUICKFIX8.COM Our name servers: