Undeliverable M ail from Nagios
I run Nagios Core 3.2.3 and running postfix as mt mta agent in Ubuntu 10.4.
I have setup nagios alerts to send to me and to send to our ticketing system which is email@example.com.
My ticketing system has a auto responder which responds to end users so with that basically whenever Nagios sends alerts to firstname.lastname@example.org it auto responds to nagios - unfortunately it fails:
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
<email@example.com>: Host or domain name not found. Name service error for name=monitor22.csaa.local type=A: Host not found
My question is, how can I make Nagios/Postfix receive emails within?
Pls kindly advise mates.
- Post the detailed steps and related configuration files?
- Have a look at the Nagios log.
Im getting access denied when testing postfix:
root:~# telnet localhost 25
Connected to localhost.
Escape character is '^]'.
mail from: firstname.lastname@example.org
250 2.1.0 Ok
rcpt to: email@example.com
Relay access denied
Take a look at some parameters such as: mydestination, smtpd_recipient_restrictions, relay_domains, ... on the Postfix documentation.
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