Problem with Recursive Queries
Mark Andrews
Mark_Andrews at isc.org
Wed Mar 8 03:40:43 UTC 2006
> I have set up some control to restrict recursive queries to my DNS
> server and found that somehow it affected the delivery and sending of
> emails.
>
> Following are entries that I put in the named.conf file to restrict
> recursive queries.
>
> view "internal" {
> match-clients { 192.168.100.0/24; };
> recursion yes;
> };
> view "external" {
> match-clients { any; };
> recursion no;
>
> The error message i got from sending mail is :
>
> bodytype=8BITMIME, proto=ESMTP, daemon=MTA, relay=[203.223.137.123]
> Mar 7 18:29:08 abs-mail sendmail[1947]: [ID 801593 mail.notice]
> k27AEIak001947: ruleset=check_mail, arg1=<bgifwkul at bgi.com.my>,
> relay=[203.223.137.123], reject=451
> 4.1.8 Domain of sender address bgifwkul at bgi.com.my does not resolve
>
> Can anyone help to see why this is so.
>
> Rgds/
>
>
> KS Tan
Lookups are failing because the answers are not authoritative
; <<>> DiG 8.3 <<>> mx bgi.com.my @203.92.157.2 +norec
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2962
;; flags: qr ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 2
;; QUERY SECTION:
;; bgi.com.my, type = MX, class = IN
;; ANSWER SECTION:
bgi.com.my. 6H IN MX 5 smtp2.bgi.com.my.
bgi.com.my. 6H IN MX 10 smtp.bgi.com.my.
bgi.com.my. 6H IN MX 10 mail.dev.
;; ADDITIONAL SECTION:
smtp2.bgi.com.my. 6H IN A 219.94.51.182
smtp.bgi.com.my. 6H IN A 203.92.157.6
;; Total query time: 382 msec
;; FROM: drugs.dv.isc.org to SERVER: 203.92.157.2
;; WHEN: Wed Mar 8 14:37:20 2006
;; MSG SIZE sent: 28 rcvd: 127
; <<>> DiG 8.3 <<>> mx bgi.com.my @219.94.51.179 +norec
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29114
;; flags: qr ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 2
;; QUERY SECTION:
;; bgi.com.my, type = MX, class = IN
;; ANSWER SECTION:
bgi.com.my. 6H IN MX 5 smtp2.bgi.com.my.
bgi.com.my. 6H IN MX 10 smtp.bgi.com.my.
bgi.com.my. 6H IN MX 10 mail.dev.
;; ADDITIONAL SECTION:
smtp2.bgi.com.my. 6H IN A 219.94.51.182
smtp.bgi.com.my. 6H IN A 203.92.157.6
;; Total query time: 409 msec
;; FROM: drugs.dv.isc.org to SERVER: 219.94.51.179
;; WHEN: Wed Mar 8 14:38:15 2006
;; MSG SIZE sent: 28 rcvd: 127
and 210.187.36.130 does not respond.
Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org
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