[dns-operations] Emoji "Female" symbol fails to resolve at Google's 8.8.8.8 & 8.8.4.4

[Stephane Bortzmeyer]

On Tue, Jul 11, 2017 at 02:41:12PM +0100,
 James Stevens <James.Stevens at jrcs.co.uk> wrote 
 a message of 17 lines which said:

> Anybody know why Google now returns "status: SERVFAIL" for ♀.com
> (xn--e5h.com

DNSSEC-broken (there is a DS but no signatures). Nothing to do with emojis.

% dig A xn--e5h.com

; <<>> DiG 9.10.3-P4-Debian <<>> A xn--e5h.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 64935
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
;; QUESTION SECTION:
;xn--e5h.com.		IN A

;; Query time: 294 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jul 11 16:18:14 CEST 2017
;; MSG SIZE  rcvd: 40


% dig +cd A xn--e5h.com

; <<>> DiG 9.10.3-P4-Debian <<>> +cd A xn--e5h.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 833
;; flags: qr rd ra cd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
;; QUESTION SECTION:
;xn--e5h.com.		IN A

;; ANSWER SECTION:
xn--e5h.com.		572 IN A 184.168.221.30

;; AUTHORITY SECTION:
xn--e5h.com.		3522 IN	NS ns76.domaincontrol.com.
xn--e5h.com.		3522 IN	NS ns75.domaincontrol.com.

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jul 11 16:18:41 CEST 2017
;; MSG SIZE  rcvd: 108