Hello,
I have an issue where I am unable to route emails to our sister company which is on other mail system (non Domino) from my cluster Domino server. Where as email routes to them from our primary Domino server. When emails routes to that domain (example: john.doe@sister.mydomain.com) from our cluster server it immediately reports with below mail router error (Delivery failure).
No route found to domain sister.mydomain.com from server ClusterSrv/MyOrg Check DNS Configuration.
However, the same email route from primary server without any issues.
Do you know what is wrong here ?
Hi,
The error indicates your Domino machine operating system has an issue is resolving the Domain. It is important to check it from the network level using the nslookup to know if you are able to resolve the domain outside of Domino. You can use nslookup utility via command prompt as below.
Using nslookup:
1) Open command prompt.
2) Type nslookup
3) Now type as below
set type=mx
4) Now type the problematic domain name example : yahoo.com ( you need to replace with your actual sister company domain)
Is it resolving to the mx pointer of your sister company domain ?
If not then, your Domino server OS network has the problem to resolve the domain. You need to fix it that first
May be the DNS server problem, You may try using the alternate DNS server or use default DNS server like 8.8.8.8.
Thank you
Regards
Shrikant J
Dear Shrikanth,
Thanks for your quick response and pointing to the right direction. OS is unable to resolve the sister company domain. We tried to change it to default DNS gateway 8.8.8.8 on the Domino server and found nslookup is able to resolve it.
We tested by sending test email found it is working. We will further check with our network team about DNS server issue. Once again, thanks for your quick guidance.
Regards
K Srinivasa
Thanks for your reply.. good to know using the Google public dns server "8.8.8.8" has helped to isolate the issue.
Regards
Shrikant J