コマンドでDNSの反映を確認するに引き続き、MXレコードを確認
google.co.jpをサンプルに
$ nslookup -type=mx google.co.jp
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
google.co.jp mail exchanger = 10 aspmx.l.google.com.
google.co.jp mail exchanger = 40 alt3.aspmx.l.google.com.
google.co.jp mail exchanger = 30 alt2.aspmx.l.google.com.
google.co.jp mail exchanger = 50 alt4.aspmx.l.google.com.
google.co.jp mail exchanger = 20 alt1.aspmx.l.google.com.
Authoritative answers can be found from:
google.co.jp nameserver = ns3.google.com.
google.co.jp nameserver = ns4.google.com.
google.co.jp nameserver = ns2.google.com.
google.co.jp nameserver = ns1.google.com.
ns4.google.com internet address = 216.239.38.10
ns3.google.com internet address = 216.239.36.10
ns2.google.com internet address = 216.239.34.10
ns1.google.com internet address = 216.239.32.10
$ dig google.co.jp mx
; <<>> DiG 9.9.5-3ubuntu0.3-Ubuntu <<>> google.co.jp mx
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28586
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 4, ADDITIONAL: 5
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;google.co.jp. IN MX
;; ANSWER SECTION:
google.co.jp. 553 IN MX 10 aspmx.l.google.com.
google.co.jp. 553 IN MX 30 alt2.aspmx.l.google.com.
google.co.jp. 553 IN MX 40 alt3.aspmx.l.google.com.
google.co.jp. 553 IN MX 50 alt4.aspmx.l.google.com.
google.co.jp. 553 IN MX 20 alt1.aspmx.l.google.com.
;; AUTHORITY SECTION:
google.co.jp. 2371 IN NS ns3.google.com.
google.co.jp. 2371 IN NS ns4.google.com.
google.co.jp. 2371 IN NS ns1.google.com.
google.co.jp. 2371 IN NS ns2.google.com.
;; ADDITIONAL SECTION:
ns4.google.com. 2374 IN A 216.239.38.10
ns3.google.com. 2397 IN A 216.239.36.10
ns2.google.com. 2378 IN A 216.239.34.10
ns1.google.com. 2371 IN A 216.239.32.10
;; Query time: 15 msec
;; SERVER: 127.0.1.1#53(127.0.1.1)
;; WHEN: Mon Aug 03 12:12:14 JST 2015
;; MSG SIZE rcvd: 295
