Nagios 3.2.1 on ubuntu notification problems

Hi,
  Try enabling notification at the configuration file itself.

ENABLE_SVC_NOTIFICATIONS       <host_name>;<service_description>       This is used to re-enable notifications for the specified service. Note that both the host name and service description are required.

Also make sure you have configured proper email address in contacts.cfg as below  :

define contact{

        contact_name                    mdsouza_e               ; Short
name of user

        use                             generic-contact         ;
Inherit default values from generic-contact template (defined above)

        alias                           Marvin D'Souza          ; Full
name of user

        email                           XXXXX     ; <<***** CHANGE THIS
TO YOUR EMAIL ADDRESS ******

        }

are you talking about the commands.cfg file? the contacts.cfg file is configured to send mail to a valid address.

I see in the commands file there is a text saying that I should use /usr/bin/mailx instead of /usr/bin/mail I have tried with both options... does this path need to point to postfix?
i maby should mention that i am rather new to linux and nagios :-)

yes it should point to your mail function , do you see, server not being able to send emails in your log ?

sorry for the delay... there is nothing in the mail logfile indicating that a mail is being sent... i installed postfix as an sattelite routing mail to my exchange server, mail from the nagios pc works fine (telnet) but I think there might be something wrong with the nagios settings... in my commands.cfg file I have tried both /usr/bin/mail as well as /usr/bin/mailx...any suggestions?

the nagios log file is posting thist error "name@email.com resulted in a return code of 127. make sure the script or binary you are trying to execute actually exsists...