Nagios Support Forum

In the notification which users receive, the sender's name is nagios@asadinf.ae.corp

where asadinf.ae.corp is the Nagios production server.

User wants the sender's name as Nagios instead of nagios@asadinf.ce.corp

How can this be achieved. We are using Nagios core.

Hi Pratapa,

After doing some research on this, you should be able to set this in the notification commands for hosts and services by adding -r $ADMINEMAIL$ to the command string.

Take a look at the following thread for more details and let us know how it goes.

how to change the default sender of nagios mail notification

Following is the service command definition in notifications.cfg

define command {
command_name notify-service-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nHostname: $HOSTNAME$\nAddress: $HOSTADDRESS$\nResolver Group: $_SERVICERESOLVER_GROUP$\nService Notes: $SERVICENOTESURL$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTNAME$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
}


and following is the one which is defined in nagios.cfg file


# ADMINISTRATOR EMAIL/PAGER ADDRESSES
# The email and pager address of a global administrator (likely you).
# Nagios never uses these values itself, but you can access them by
# using the $ADMINEMAIL$ and $ADMINPAGER$ macros in your notification
# commands.

admin_email=nagios@localhost


how should I append $ADMINEMAIL$ in service command definition


I think I should change admin_email=nagios@localhost to admin_email=Nagios in nagios.cfg file.

and I should append $ADMINEMAIL$ as follows in service command definition.


define command {
command_name notify-service-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nHostname: $HOSTNAME$\nAddress: $HOSTADDRESS$\nResolver Group: $_SERVICERESOLVER_GROUP$\nService Notes: $SERVICENOTESURL$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTNAME$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$ -r $ADMINEMAIL$
}


correct me if I am wrong.

Yes, I believe that should do the trick. From the manual page for the mail command:

-r address
Sets the From address. Overrides any from variable specified in
environment or startup files. Tilde escapes are disabled. The
-r address options are passed to the mail transfer agent unless
SMTP is used. This option exists for compatibility only; it is
recommended to set the from variable directly instead.

This did not work.