[dns-operations] Anyone from Microsoft here?

[Charlie Jonas]

Hi,

On Fri, Aug 13, 2021 at 01:19:47PM +1000, Mark Andrews wrote:
> > ha.office365.com is being delegated to 
> > 
> > ha.office365.com.	300	IN	NS	tm2.edgedns-tm.info.
> > ha.office365.com.	300	IN	NS	tm1.edgedns-tm.info.
> > ha.office365.com.	300	IN	NS	ns2-ms-acdc.office.com.
> > ha.office365.com.	300	IN	NS	ns1-ms-acdc.office.com.
> > ha.office365.com.	300	IN	NS	ns4-ms-acdc.office.com.
> > ha.office365.com.	300	IN	NS	ns3-ms-acdc.office.com.
> > 
> > but tm1.edgedns-tm.info and tm2.edgedns-tm.info are returning invalid
> > negative responses for outlook.ha.office365.com/HTTPS

That zone also has a non-standard start of authority RNAME field.

$ dig ha.office365.com. SOA +norec @ns1-ms-acdc.office.com.

; <<>> DiG 9.10.6 <<>> ha.office365.com. SOA +norec @ns1-ms-acdc.office.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32194
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1224
;; QUESTION SECTION:
;ha.office365.com.		IN	SOA

;; ANSWER SECTION:
ha.office365.com.	60	IN	SOA	ns1-ms-acdc.office.com. hostmaster\@microsoft.com. 2021081106 900 600 86400 60

;; ADDITIONAL SECTION:
ns1-ms-acdc.office.com.	1220	IN	A	13.107.244.2

;; Query time: 54 msec
;; SERVER: 13.107.244.2#53(13.107.244.2)
;; WHEN: Fri Aug 13 09:50:07 BST 2021
;; MSG SIZE  rcvd: 137

Unsure if this is a mistake, and it should be hostmaster.microsoft.com., 
or if it's intentional because that email address doesn't actually 
work...

-- 
Charlie Jonas
  ~chtjonas