Exchange 2013: DNS Problem? No Mail Flow At All
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Wednesday, January 09, 2013 5:12 PM
Exchange 2013: DNS Problem? No mail Flow At All!
Please excuse me if I have asked in the incorrect Forum.
I have given below as much concise information as I can but do please ask if any more information is required.
Hosting: Go daddy
Well I must admit I am pulling my hair out with this one. I have been using SBS2011STD and decided for training purposes to wipe the server and install the following:
Server 2012 setup as a DC with Hyper-V.
Server 2012 with Exchange 2013 as VM and joined to the domain.
Installation all OK no errors.
As you would appreciate SBS2011STD sets up as required the necessary settings via DNS manager at Go daddy automatically and worked fine although I had to allow SMTP etc. within the Netgear wireless router as this would not setup via SBS2011STD. I more or less just changed the setting that SBS2011STD setup via the DNS manager at go daddy. It put remote. in front of the setting like remote.mydomian.eu. I have not followed that path as I though it something that was just a configuration that SBS2011STD required!
I just cannot get mail flow at all. It points to a DNS problem or configuration it would seem? Mydomain.com as an example.
Go Daddy DNS:
A (Host) @ IP is pointing to the public IP of my router. (IP is a business IP and is not blacklisted.)
CName (Alias) None
MX (Mail Exchanger) 10 @ Exchange.mydomain.eu (name of exchange server)
TXT (Text) @ v=spf1 a mx ~all
SRV (Service) _autodiscover _tcp @ 0 0 443 mydomain.eu
AAAA (IPv6 Host) None
NS (Nameserver @ (informational) ns11.domaincontrol.com\ns12.domiancontrol.com
Test with www.testexchangeconnectivity.com (Remote Connectivity Analyser)
Internet E-mail tests.
Outbound: All Green Ticks (although no mail is received if I send within my domain)
Inbound:
Testing inbound SMTP mail flow for domain paul@mydomain.eu.
ExRCA failed to test inbound SMTP mail flow.
Test Steps
Attempting to retrieve DNS MX records for domain mydonain.eu.
One or more MX records were successfully retrieved from DNS.
Additional Details
MX Records Host Exchange.pauledwards.eu, Preference 10
Testing Mail Exchanger exchange.mydomain.eu.
One or more SMTP tests failed for this Mail Exchanger.
Test Steps
Attempting to resolve the host name Exchange.mydomain.eu in DNS.
The host name couldn't be resolved.
Tell me more about this issue and how to resolve it
Additional Details
Host exchange.mydomain.eu couldn't be resolved in DNS InfoDomainNonexistent.
Exchange Connectors: Receive Connectors as default (I believe Microsoft say this is OK to be left as is)?
Send Connector as SMTP * (as recommended by Microsoft)
DNS on DC: Mail Exchanger (MX) Domain FQDN: mydomain.eu.
Mail Server FQDN: Exchange.mydomain.eu
Priority 10
Host (A) Exchange.mydomain.eu IP: 192.168.0.4
I am sure it’s something stupid or incorrect I have done but if anyone is willing to help I can send snapshot of settings direct to your e-mail if you advise. Any help MUCH appreciated.
Paul
All Replies
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Thursday, January 10, 2013 2:40 PMModerator
Hi Paul,
Please use this tool to do an inbound and outbound email test, and post the result.
https://www.testexchangeconnectivity.com/
Thanks,
Evan
Evan Liu
TechNet Community Support
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Thursday, January 10, 2013 3:53 PM
Hi Evan, already run as per my post.
Regards
Paul
Test with www.testexchangeconnectivity.com (Remote Connectivity Analyser)
Internet E-mail tests.
Outbound: All Green Ticks (although no mail is received if I send within my domain)
Inbound:
Testing inbound SMTP mail flow for domain paul@mydomain.eu.
ExRCA failed to test inbound SMTP mail flow.
Test Steps
Attempting to retrieve DNS MX records for domain mydonain.eu.
One or more MX records were successfully retrieved from DNS.
Additional Details
MX Records Host Exchange.pauledwards.eu, Preference 10
Testing Mail Exchanger exchange.mydomain.eu.
One or more SMTP tests failed for this Mail Exchanger.
Test Steps
Attempting to resolve the host name Exchange.mydomain.eu in DNS.
The host name couldn't be resolved.
Tell me more about this issue and how to resolve it
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Friday, January 25, 2013 6:54 AMModerator
Hello,
From your test result, it seems cannot find record for Exchange.mydomain.eu.
If "Exchange.mydomain.eu" don't have A record on the DNS server, you can go to create it and try again for the issue.
Thanks,
Evan Liu
TechNet Subscriber Support in forum
If you have any feedback on our support, please contact tnmff@microsoft.com
Evan Liu
TechNet Community Support -
Wednesday, January 30, 2013 2:19 AMModerator
How about the issue, any updates?
Thanks,
Evan Liu
TechNet Subscriber Support in forum
If you have any feedback on our support, please contact tnmff@microsoft.com
Evan Liu
TechNet Community Support -
Wednesday, January 30, 2013 1:34 PM
Hi Evan, sorry for delay but have been moving servers to another room.
1: Have mail outbound OK. Can send mail.
2: Same problem as before cannot get mail. Same error as above. Mail is returned to me with:
Reporting-MTA: dns; mk-filter-4.mail.uk.tiscali.com
Final-Recipient: rfc822;Paul@mydomain.eu
Action: failed
Status: 5.0.0 (permanent failure)
Diagnostic-Code: smtp; 5.1.2 - Bad destination host 'DNS Hard Error looking up exchange.mydomain.eu (A): NXDomain' (delivery attempts: 0)I have yet to receive the bounce back at work but the above is via our old pop account with Tiscali (talktalk) that still works OK in\out via our talktalk business broadband.
I am sure that I have a configuration error some ware but as far as I can see the DNS records are Ok on the DNS local server here!
Paul Edwards
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Wednesday, January 30, 2013 3:25 PM
Ok after a few changes I now get this after running inbound although port scans tell me port 25 is open! I still feel its a configuration error!
Testing inbound SMTP mail flow for domain paul@mydomain.eu.
ExRCA failed to test inbound SMTP mail flow.
Test Steps
Attempting to retrieve DNS MX records for domain pauledwards.eu.
One or more MX records were successfully retrieved from DNS.
Additional Details
MX Records Host exchange.pauledwards.eu, Preference 10Testing Mail Exchanger exchange.mydomain.eu.
One or more SMTP tests failed for this Mail Exchanger.
Test Steps
Attempting to resolve the host name exchange.mydomain.eu in DNS.
The host name resolved successfully.
Additional Details
IP addresses returned: 92.19.247.168Testing TCP port 25 on host exchange.pauledwards.eu to ensure it's listening and open.
The specified port is either blocked, not listening, or not producing the expected response.
Tell me more about this issue and how to resolve it
Additional Details
A network error occurred while communicating with the remote host.Paul
Paul Edwards
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Wednesday, January 30, 2013 5:42 PM
Well I have no idea what I have done but it now seems to be all working. Just this error if its a problem or not from the smtp test via mxtoolbox?
SMTP Reverse DNS Mismatch. Warning - Reverse DNS does not match the SMTP Banner.
So any ideas as to how to clear this would be nice
Regards
Paul Edwards
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Thursday, January 31, 2013 2:43 AMModerator
Hi Paul,
If you get the warning "Reverse DNS does not match the SMTP Banner", please follow this to check on the send connector:
EMC->Organization Configuration->Hub Transport->Send Connectors->choose the send connector->properties->General tab->type the A record domain name you created to the Fully Qualified Domain Name(FQDN)->OK
Also go to check this on the receive connector.
Thanks,
Evan Liu
TechNet Subscriber Support in forum
If you have any feedback on our support, please contact tnmff@microsoft.com
Evan Liu
TechNet Community Support
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