nagios not notifying by email

[Dave Stern]

Continuing with the problem of nagios not sending email notifications,

miscommands.cfg uses the default commands for host/service-notify-by-email
and the paths to mail are correct. I tested the command, and it works. 
I replaced it with echo ... params>>/tmp/somefile but this is not being
activated so it must be one of the config params:

contacts.cfg:
# 'others' contact definition
define contact{
         contact_name                    others
         alias                           Undefined hosts
         service_notification_period     workhours
         host_notification_period        workhours
         service_notification_options    w,u,c
         host_notification_options       d,u
         service_notification_commands   notify-by-email
         host_notification_commands      host-notify-by-email
         email                           root at netmon.umiacs.umd.edu

         }
......
hosts.cfg:
# Generic host definition template
         define host{
         name    generic-host
         notifications_enabled   1
         event_handler_enabled   1
         flap_detection_enabled  1
         process_perf_data       1
         retain_status_information       1
         retain_nonstatus_information    1
         register                0
         }

# 'host1' host definition
define host{
                 use             generic-host
                 host_name       host1
                 alias           host1
                 address          10.8.122.129
                 check_command   check-host-alive
                 max_check_attempts      10
                 notification_interval   1
                 notification_period     24x7
                 notification_period     24x7
                 notification_options    d,u
                 }
...

nagios.cfg includes
log_notifications=1
notification_timeout=30
enable_notifications=1


services.cfg:
# Generic service definition template
define service{
         name    generic-service
         active_checks_enabled   1
         passive_checks_enabled  1
         parallelize_check       1
         obsess_over_service     1
         check_freshness         1
         notifications_enabled   1
         event_handler_enabled   1
         flap_detection_enabled  1
         process_perf_data       1
         retain_status_information       1
         retain_nonstatus_information    1
         register                        0
         }

# Service definition
define service{
           use     generic-service
           host_name       host1
           service_description             AVAILABLE
           is_volatile     0
           check_period    24x7
           max_check_attempts      3
           normal_check_interval   10
           retry_check_interval    1
           contact_groups           others
           notification_interval   11
           notification_period     24x7
           notification_options    w,u,c
          check_command           check-host-alive
           }
....

Can anyone see where notification by email may have been turned off
or have any other ideas on diagnosing?
TIA


  =-=-=-=-=-=-=-=-=-=-  generated by /dev/dave -=-=-=-=-=-=-=-=-=-=-=-=
  David Stern                                    University of Maryland
            Institute for Advanced Computer Studies


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