1.1.1.2 DNS Resolution Error

mail.yahoo.com resolves on google’s DNS, won’t resolve on cloudflare’s. I send email email to [email protected] and they send me “Thank you for contacting Cloudflare Support. Your issue has been marked as Resolved in our system.” But it’s not resolved.

mail.yahoo.com
Server: dns.google
Address: 8.8.8.8

Non-authoritative answer:
Name: edge.gycpi.b.yahoodns.net
Addresses: 2001:4998:60:800::1106
2001:4998:60:800::1105
69.147.64.34
69.147.64.33
Aliases: mail.yahoo.com

server 1.0.0.2
Default Server: [1.0.0.2]
Address: 1.0.0.2

mail.yahoo.com
Server: [1.0.0.2]
Address: 1.0.0.2

Non-authoritative answer:
Name: edge.gycpi.b.yahoodns.net
Addresses: 2001:4998:60:800::1106
2001:4998:60:800::1105
0.0.0.0
Aliases: mail.yahoo.com

Resolves fine for me

nslookup mail.yahoo.com 1.0.0.2
Server:  UnKnown
Address:  1.0.0.2

Non-authoritative answer:
Name:    edge.gycpi.b.yahoodns.net
Addresses:  2a00:1288:f03d:1fa::2000
	  2a00:1288:f03d:1fa::4000
	  188.125.89.206
	  188.125.89.204
Aliases:  mail.yahoo.com

Can you post the output of these commands?

nslookup mail.yahoo.com 1.1.1.1
nslookup mail.yahoo.com 1.0.0.1

Just ran into this myself. Here’s how the resolution looks for me using a nslookup for mail.yahoo.com

Address: 1.1.1.2
Non-authoritative answer:
Addresses: 2001:4998:60:800::1105
2001:4998:60:800::1106
0.0.0.0

Address: 1.0.0.2
Non-authoritative answer:
Addresses: 2001:4998:60:800::1106
2001:4998:60:800::1105
0.0.0.0

As opposed to using the regular Cloudflare DNS

Address: 1.1.1.1
Non-authoritative answer:
Addresses: 2001:4998:60:800::1106
2001:4998:60:800::1105
69.147.64.34
69.147.64.33

or Google

Address: 8.8.8.8
Non-authoritative answer:
Addresses: 2001:4998:60:800::1105
2001:4998:60:800::1106
69.147.64.33
69.147.64.34

1 Like

I am an MSP that takes care of 53 clients. I’m really tired of the issues Cloudflare has on a regular basis with this exact issue. Last week it was godaddy.cloud-protect.net. Another client just called me and could not get to their bank’s website. I changed them to 8.8.8.8 and they could. I guess I am giving up cloudflare’s un-reliable DNS servers and going back to google DNS. Too bad really, it’s a great idea to block malware and adult content with their free servers but if I have to scramble to change 60+ DNS servers to get my clients working, it’s not worth it.

server 1.1.1.1
Default Server: one.one.one.one
Address: 1.1.1.1

mail.yahoo.com
Server: one.one.one.one
Address: 1.1.1.1

Non-authoritative answer:
Name: edge.gycpi.b.yahoodns.net
Addresses: 2001:4998:60:800::1106
2001:4998:60:800::1105
69.147.64.34
69.147.64.33
Aliases: mail.yahoo.com

server 1.0.0.1
Default Server: one.one.one.one
Address: 1.0.0.1

mail.yahoo.com
Server: one.one.one.one
Address: 1.0.0.1

Non-authoritative answer:
Name: edge.gycpi.b.yahoodns.net
Addresses: 2001:4998:60:800::1105
2001:4998:60:800::1106
69.147.64.34
69.147.64.33
Aliases: mail.yahoo.com

Looks like they figured it out. I wonder what site won’t resolve tomorrow…