one MX record points to many A records

Len Conrad LConrad at Go2France.com
Wed Sep 4 16:21:37 UTC 2002



>Do you think this might cause anybody any problems - rather than have
>many MX records with one A record for each?

seems to work for these people:

# dig aol.com mx

; <<>> DiG 8.3 <<>> aol.com mx
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 4, ADDITIONAL: 18
;; QUERY SECTION:
;;      aol.com, type = MX, class = IN

;; ANSWER SECTION:
aol.com.                1H IN MX        15 mailin-03.mx.aol.com.
aol.com.                1H IN MX        15 mailin-04.mx.aol.com.
aol.com.                1H IN MX        15 mailin-01.mx.aol.com.
aol.com.                1H IN MX        15 mailin-02.mx.aol.com.

;; AUTHORITY SECTION:
aol.com.                1H IN NS        dns-01.ns.aol.com.
aol.com.                1H IN NS        dns-02.ns.aol.com.
aol.com.                1H IN NS        dns-06.ns.aol.com.
aol.com.                1H IN NS        dns-07.ns.aol.com.

;; ADDITIONAL SECTION:
mailin-03.mx.aol.com.   5M IN A         64.12.136.217
mailin-03.mx.aol.com.   5M IN A         64.12.136.249
mailin-03.mx.aol.com.   5M IN A         64.12.137.121
mailin-03.mx.aol.com.   5M IN A         64.12.137.152
mailin-03.mx.aol.com.   5M IN A         205.188.158.25
mailin-04.mx.aol.com.   5M IN A         152.163.224.122
mailin-04.mx.aol.com.   5M IN A         64.12.136.153
mailin-04.mx.aol.com.   5M IN A         64.12.137.121
mailin-04.mx.aol.com.   5M IN A         64.12.137.152
mailin-01.mx.aol.com.   5M IN A         152.163.224.26
mailin-01.mx.aol.com.   5M IN A         64.12.136.57
mailin-01.mx.aol.com.   5M IN A         205.188.156.122
mailin-01.mx.aol.com.   5M IN A         64.12.137.89
mailin-01.mx.aol.com.   5M IN A         64.12.137.184
dns-01.ns.aol.com.      1H IN A         152.163.159.232
dns-02.ns.aol.com.      1H IN A         205.188.157.232
dns-06.ns.aol.com.      1H IN A         149.174.211.8
dns-07.ns.aol.com.      1H IN A         64.12.51.132

:)

Len




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