Tamil Vendhan Kanagarasu
CDCloudflare Developers
•Created by Tamil Vendhan Kanagarasu on 1/31/2024 in #general-help
Does creating MX record on a subdomain makes subdomain resolution to fail?
I have created a wildcard subdomain. If a new subdomain is created(in my system), it immediately creates an MX record on(Cloudflare).
Accessing subdomain after that gives
DNS_PROBE_FINISHED_NXDOMAIN on browser & pings to the domain fails with Unknown host.
I added some delay in creating MX record, with the intention to access the subdomain before it gets created. Now, the subdomain loads without any issues.
Is this observatoin correct? Does creating MX records before a subdomain is queried on name server causes the subdomain resolution to fail? How do I solve this?
Another issue is that, the subdomains that were previously not resolved, never gets resolves. Only when individual A records are created, they began to work!
Both of these problems makes it really difficult to work wildcard subdomains.
Could someone point me towards the right resources to resolve these issues?10 replies