Dns 如何检查某些站点的MX/SOA RCORD

Dns 如何检查某些站点的MX/SOA RCORD,dns,bind,Dns,Bind,我喜欢为一些网站寻找MX 我尝试了类似www.yahoo.com的MX 但是我找不到mail.yahoo.com 有什么想法吗?$dig yahoo.com MX $ dig yahoo.com MX ; <<>> DiG 9.8.3-P1 <<>> yahoo.com MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, statu

我喜欢为一些网站寻找MX

我尝试了类似www.yahoo.com的MX 但是我找不到mail.yahoo.com

有什么想法吗?

$dig yahoo.com MX
$ dig yahoo.com MX
; <<>> DiG 9.8.3-P1 <<>> yahoo.com MX
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20645
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;yahoo.com.         IN  MX

;; ANSWER SECTION:
yahoo.com.      269 IN  MX  1 mta5.am0.yahoodns.net.
yahoo.com.      269 IN  MX  1 mta7.am0.yahoodns.net.
yahoo.com.      269 IN  MX  1 mta6.am0.yahoodns.net.

;; Query time: 64 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Mar  9 18:51:14 2013
;; MSG SIZE  rcvd: 106
; 挖掘9.8.3-P1 yahoo.com MX ;; 全局选项:+cmd ;; 得到答案: ;; ->>标题