mail receipt & sending error

[hykim]

hi,

I have some problem while installation Zimbra

in scenario gmail to our mailserver

error code


This is the mail system at host mail.imtl.skku.ac.kr.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

: Host or domain name not found. Name service error for
name=mail.imtl.skku.ac.kr type=A: Host not found

Final-Recipient: rfc822; hoyeon@imtl.skku.ac.kr
Original-Recipient: rfc822;hoyeon@imtl.skku.ac.kr
Action: failed
Status: 5.4.4
Diagnostic-Code: X-Postfix; Host or domain name not found. Name service error
for name=mail.imtl.skku.ac.kr type=A: Host not found



somebody help me..!

[gvillari]

Hi,

Do you have correct DNS records for this server and correct /etc/hosts file?

Please check the commands that you find in the 'Verify...' section of the following link and post here the output of these commands:

Split DNS - Zimbra :: Wiki

Regards

[hykim]

thx for your replay

i try to

dig imtl.skku.ac.kr mx
dig imtl.skku.ac.kr any

and

vi /etc/hosts
vi /etc/resolv.conf

(our system is ubuntu server 10.04)

and i saw incorrect information

how to change out information..?

/etc/resolve.conf

nameserver 168.126.63.1
nameserver 8.8.8.8
search mail.imtl.skku.ac.kr
nameserver 127.0.0.1
domain mail.imtl.skku.ac.kr

/etc/hosts/

127.0.0.1 localhost.localdomain localhost
115.145.212.101 msp.imtl.skku.ac.kr msp
115.145.212.101  mail.imtl.skku.ac.kr mail
# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

dig imtl.skku.ac.kr mx

; <<>> DiG 9.7.0-P1 <<>> imtl.skku.ac.kr mx
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13871
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;imtl.skku.ac.kr.		IN	MX

;; ANSWER SECTION:
imtl.skku.ac.kr.	3600	IN	MX	20 imtl.skku.ac.kr.

;; AUTHORITY SECTION:
skku.ac.kr.		513	IN	NS	i-ns.skku.ac.kr.
skku.ac.kr.		513	IN	NS	ns.skku.ac.kr.

;; ADDITIONAL SECTION:
imtl.skku.ac.kr.	2940	IN	A	115.145.212.101
ns.skku.ac.kr.		513	IN	A	203.252.57.2
i-ns.skku.ac.kr.	513	IN	A	203.252.32.4

;; Query time: 7 msec
;; SERVER: 168.126.63.1#53(168.126.63.1)
;; WHEN: Wed Jul  6 21:59:04 2011
;; MSG SIZE  rcvd: 133

dig imtl.skku.ac.kr any

; <<>> DiG 9.7.0-P1 <<>> imtl.skku.ac.kr any
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 65303
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;imtl.skku.ac.kr.		IN	ANY

;; ANSWER SECTION:
imtl.skku.ac.kr.	3600	IN	MX	20 imtl.skku.ac.kr.
imtl.skku.ac.kr.	3600	IN	A	115.145.212.101

;; AUTHORITY SECTION:
skku.ac.kr.		1410	IN	NS	i-ns.skku.ac.kr.
skku.ac.kr.		1410	IN	NS	ns.skku.ac.kr.

;; ADDITIONAL SECTION:
imtl.skku.ac.kr.	3600	IN	A	115.145.212.101
ns.skku.ac.kr.		1666	IN	A	203.252.57.2
i-ns.skku.ac.kr.	1410	IN	A	203.252.32.4

;; Query time: 5 msec
;; SERVER: 168.126.63.1#53(168.126.63.1)
;; WHEN: Wed Jul  6 21:59:48 2011
;; MSG SIZE  rcvd: 149

authority section and addtional section information is incorrect comparison split DNS guide.

hostname

root@mail:/opt/zimbra/postfix/sbin# hostname
mail.imtl.skku.ac.kr