Postfix unable to send email for specific domain
kshitij mali
foreplayboy at gmail.com
Wed Feb 22 01:50:47 UTC 2012
we are unable to send email for domain lcit.com
we get following error in the email logs:
Feb 20 00:54:17 D1OKH680RL postfix/smtp[4993]: 390077605C3: to=<
xxxxxx at lcit.com <teerapat at MitsubishiElevatorAsia.co.th>>, relay=none,
delay=13164, delays=13144/0/20/0, dsn=4.4.3, status=deferred (Host or
domain name not found. Name service error for name=lcit.com type=MX: Host
not found, try again)
please find the below dig and dig with trace result below:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[root at D1OKH680RL ~]# dig lcit.com mx
; <<>> DiG 9.2.4 <<>> lcit.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6691 ;; flags: qr rd
ra; QUERY: 1, ANSWER: 5, AUTHORITY: 2, ADDITIONAL: 5
;; QUESTION SECTION:
;lcit.com. IN MX
;; ANSWER SECTION:
lcit.com. 34176 IN MX 10 mail.lcit.com.
lcit.com. 34176 IN MX 20 backmail.lcit.com.
lcit.com. 34176 IN MX 12816 mx1.samart.co.th.
lcit.com. 34176 IN MX 20000 mx4.samart.co.th.
lcit.com. 34176 IN MX 5 mx1.lcit.com.
;; AUTHORITY SECTION:
lcit.com. 33947 IN NS tee.samart.co.th.
lcit.com. 33947 IN NS jiab.samart.co.th.
;; ADDITIONAL SECTION:
mx1.lcit.com. 33947 IN A 203.149.3.68
mail.lcit.com. 34176 IN A 203.149.3.71
backmail.lcit.com. 34176 IN A 58.137.81.18
tee.samart.co.th. 860 IN A 203.149.0.3
jiab.samart.co.th. 858 IN A 203.149.0.2
;; Query time: 0 msec
;; SERVER: 155.14.30.133#53(155.14.30.133) ;; WHEN: Tue Feb 21 20:39:55
2012 ;; MSG SIZE rcvd: 261
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[root at D1OKH680RL ~]# dig +trace lcit.com mx
; <<>> DiG 9.2.4 <<>> +trace lcit.com mx ;; global options: printcmd
438530 IN NS j.root-servers.net.
438530 IN NS k.root-servers.net.
438530 IN NS l.root-servers.net.
438530 IN NS m.root-servers.net.
438530 IN NS a.root-servers.net.
438530 IN NS b.root-servers.net.
438530 IN NS c.root-servers.net.
438530 IN NS d.root-servers.net.
438530 IN NS e.root-servers.net.
438530 IN NS f.root-servers.net.
438530 IN NS g.root-servers.net.
438530 IN NS h.root-servers.net.
438530 IN NS i.root-servers.net.
;; Received 316 bytes from 127.0.0.1#53(127.0.0.1) in 1 ms
com. 172800 IN NS m.gtld-servers.net.
com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
com. 172800 IN NS k.gtld-servers.net.
com. 172800 IN NS d.gtld-servers.net.
com. 172800 IN NS c.gtld-servers.net.
com. 172800 IN NS e.gtld-servers.net.
com. 172800 IN NS i.gtld-servers.net.
com. 172800 IN NS h.gtld-servers.net.
com. 172800 IN NS j.gtld-servers.net.
com. 172800 IN NS f.gtld-servers.net.
com. 172800 IN NS g.gtld-servers.net.
com. 172800 IN NS l.gtld-servers.net.
;; Received 498 bytes from 192.58.128.30#53(j.root-servers.net) in 2 ms
lcit.com. 172800 IN NS jiab.samart.co.th.
lcit.com. 172800 IN NS tee.samart.co.th.
;; Received 75 bytes from 192.55.83.30#53(m.gtld-servers.net) in 268 ms
;; connection timed out; no servers could be reached
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Regards,
Kshitij
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