Re: Internal domain name same as external domain - DNS issues!!

Hi, i am new this site, so just poping in as i am facing a similar type of issue if anyone can assist me on it.

• we have just deployed our new child domain and the name same as our subdomain which is also used for emails e.g. our email subdomain is abc.xyz.com and our child domain is also abc.xyz.com. our emails are on office365 and the domain is parked on godaddy.
so now when i do a nslookup from my domain or any pc connected to that domain, it takes me to the godaddy, which is causing email sending issues.
i tried to setup a mx record on the child domain to point it to the office365 dns but it doesn't help. still i get the same godaddy on nslookup.
when i change the users DNS from local child domain dns to the isp dns, i get the nslookup query resolved for the domain correctly to the office365 records.
Is there anyway you can assist me on this or give some suggestion?
Your assistance will be highly appreciated.

Best regards.

Hi All, i actually matched the DNS of godaddy on the primary domain also, i created the same of godaddy primary records on the primary domain and the subdomain of godaddy records on the child domain.

good progress that now i am able to resolve the nslookup MX of abc.xyz.com & xyz.com on the primary domain network to correct mail.protection.outlook.com which i am able to get from the internet.
but still on the child domain it goes to the Godaddy NS.

Any suggestions please.

Regards,
Huzefa

@Dashrender when i ping mail.abc.xyz.com i don't get a reply, the SOA is the primary and the secondary domain on the local domain. i don't know if this is what you were asking.

Regards,
Huzefa

@dbeato I have added all the DNS Records, which i used to setup on office365.
CNAME, MX but still the nslookup goes to the godaddy.

i just want to ask i have a domain forwarder, do i have to remove it?

@dbeato Hi i already tried to create all the records including the CNAME, MX, which i added when setting up the domain on Godaddy to Office365, but still i get the query records of MX to Godaddy only.

Hi when i do the nslookup from the internet outside the domain, i resolve to abc-xyz-com.mail.protection.outlook.com

but when i try to nslookup from the domain, i get resolved to: (Godaddy Name Servers)
primary name server = ns21.domaincontrol.com
responsible mail addr = dns.jomax.net
serial = 2018110600
refresh = 28800 (8 hours)
retry = 7200 (2 hours)
expire = 604800 (7 days)
default TTL = 86400 (1 day)

Thanks

Re: Internal domain name same as external domain - DNS issues!!

Hi, i am new this site, so just poping in as i am facing a similar type of issue if anyone can assist me on it.

• we have just deployed our new child domain and the name same as our subdomain which is also used for emails e.g. our email subdomain is abc.xyz.com and our child domain is also abc.xyz.com. our emails are on office365 and the domain is parked on godaddy.
so now when i do a nslookup from my domain or any pc connected to that domain, it takes me to the godaddy, which is causing email sending issues.
i tried to setup a mx record on the child domain to point it to the office365 dns but it doesn't help. still i get the same godaddy on nslookup.
when i change the users DNS from local child domain dns to the isp dns, i get the nslookup query resolved for the domain correctly to the office365 records.
Is there anyway you can assist me on this or give some suggestion?
Your assistance will be highly appreciated.

Best regards.