Not able to send email via sendmail for particular domain.
Environment
- Red Hat Enterprise Linux 5.5
Issue
- Not able to send email via sendmail for particular domain.
# echo test | mail -vvv -s test test@example.com
example.com: Name server timeout
test@example.com... Transient parse error -- message queued for future delivery
test@example.com... queued
Resolution
- System was not able to resolve example.com.
Root Cause
- System was not able to resolve example.com.
Diagnostic Steps
# ping example.com
ping: unknown host example.com
# nslookup example.com
;; Got SERVFAIL reply from 192.168.1.150, trying next server
Server: 192.168.1.150
Address: 192.168.1.150#53
** server can't find example.com: NXDOMAIN
# dig -t MX example.com
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> -t MX example.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 38990
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;example.com. IN MX
;; Query time: 5729 msec
;; SERVER: 192.168.1.150#53(192.168.1.150)
;; WHEN: Tue May 29 01:34:18 2012
;; MSG SIZE rcvd: 26
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