when I query nslookup for the "mail" subdomain of "bw.edu" I get "non-existent domain"
From: [email protected] To: [email protected] Subject: RE: [Exchange] DNS ErrorRetry Date: Thu, 5 Nov 2015 18:35:08 +0000 mail.bw.edu is the domain not the host, no there is no A record. But it does have an MX record. From: [email protected] [mailto:[email protected]] On Behalf Of Daniel Chenault Sent: Thursday, November 5, 2015 1:07 PM To: [email protected] Subject: RE: [Exchange] DNS ErrorRetry mail.bw.edu does not exist ==================== C:\Program Files\pstools>ping mail.bw.edu Ping request could not find host mail.bw.edu. Please check the name and try agai n. C:\Program Files\pstools>nslookup Default Server: <my DNS server> Address: >redacted> > set type=mx > bw.edu Server: <redacted> Address: <redacted> Non-authoritative answer: bw.edu MX preference = 15, mail exchanger = smg.bw.edu bw.edu MX preference = 10, mail exchanger = sms.bw.edu smg.bw.edu internet address = 198.30.10.172 sms.bw.edu internet address = 198.30.10.170 > > From: [email protected] > To: [email protected] > Subject: [Exchange] DNS ErrorRetry > Date: Thu, 5 Nov 2015 14:17:17 +0000 > > Exchange 2010 on 2008 R2, current on SP's and rollups. There is no edge > server in the mix, just one hub and two mx. Having an issue with sub domain > email addresses. [email protected] DNS is failing, then they time out. > > > SMTP,mail.bw.edu,-,Messages: 0 Bytes: 0 (The DNS query for > 'DnsConnectorDelivery':'mail.bw.edu':'b24305cc-5873-4c34-b6fa-1d65ffcd8482' > failed with error : ErrorRetry) > > First time I have ever seen this, and so far it only appears to be this one > domain but I am not certain of that yet. > > Looks a lot like the below links, but I am hesitant to start changing things > for one problem I have never had before. IPV6 is currently enabled, but not > being used. > > http://exchangeserverpro.com/messages-queuing-error-451-4-4-0-dns-query-failed/ > > https://social.technet.microsoft.com/Forums/en-US/a9b1a718-7b22-4678-aa91-c8ecebb4c6fa/edge-transport-server-fails-dns-query-when-emailing-to-one-specific-domain?forum=exchangesvrsecuremessaginglegacy > > Send connector is set to use the NIC. NSLookups from the hub server. > > > set type=mx > > mail.bw.edu > Server: mydnsserver.my.domain > Address: 10.55.236.100 > > Non-authoritative answer: > mail.bw.edu MX preference = 15, mail exchanger = > 974909182.mail.exchangelabs.com > > 974909182.mail.exchangelabs.com internet address = 207.46.163.215 > 974909182.mail.exchangelabs.com internet address = 207.46.163.170 > 974909182.mail.exchangelabs.com internet address = 207.46.163.138 > > > > > >
