Whats the corresponding maillog output? <div class="gmail_quote">On Nov 1, 2012 12:13 AM, "Bruno Martins" <<a href="mailto:bruno.martins@gruporumos.com">bruno.martins@gruporumos.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div lang="PT" link="#0563C1" vlink="#954F72"> <div> Hello list, I have a server running Nagios 3.4.1 under CentOS 6.3 and I have spent some hours trying to find why some (but not all) service notifications simply don’t get to my mailbox, even though they appear in nagios.log file. This is my contact definition: define contact { contact_name helpdesk alias Helpdesk User host_notifications_enabled 1 service_notifications_enabled 1 host_notification_period 24x7 service_notification_period 24x7 host_notification_options d,r service_notification_options w,c,r host_notification_commands host-notify-by-email service_notification_commands notify-by-email can_submit_commands 1 email <a href="mailto:user@domain.com" target="_blank">user@domain.com</a> register 1 } This contact is part of WISESRV-critical group. This host is sending out notifications: define host { host_name FLAGSRV_imagina alias DC da Flag address x.y.z.q parents RUMOSRD_rlxfw01-rumos use Server register 1 } And this host is not: define host { host_name RUMOSSRV_rlxfs01 alias Servidor de partilha de ficheiros address x.y.z.q parents RUMOSRD_FLXSWCORE01 check_command check-host-alive use Server contact_groups WISESRV-critical notes rlxfs01 icon_image_alt rlxfs01 vrml_image FileServer.png register 1 } And this is the host template used by both hosts: define host { name Server alias Server Template check_command check-host-alive use advance24x7-host max_check_attempts 5 contact_groups WISESRV-critical notification_interval 60 notification_period 24x7 notification_options d,u,r notifications_enabled 1 icon_image FileServer.png vrml_image FileServer.png statusmap_image FileServer.png register 0 } This host template uses other host templates, as the ‘use’ parameter states. define host { name advance24x7-host use generic-host event_handler_enabled 1 notification_interval 60 notification_period 24x7 notification_options d,r notifications_enabled 1 register 0 } …and this is also using another host template: define host { name advance8x5-host use generic-host event_handler_enabled 1 contacts helpdesk notification_interval 60 notification_period 8x5 notification_options d,r notifications_enabled 1 register 0 } Regarding to services, I have this two set: define service { #NAGIOSQL_CONFIG_NAME FLAGSRV_imagina host_name FLAGSRV_imagina service_description PING use service-WISESRV check_command check_ping!100.0,20%!500.0,60% register 1 } define service { #NAGIOSQL_CONFIG_NAME RUMOSSRV_rlxfs01 host_name RUMOSSRV_rlxfs01 service_description Disk Space Usage use service-WISESRV check_command check_nt_disk!secret!C!95!99 contact_groups WISESRV-critical register 1 } Using this service templates: define service { name service-WISESRV service_description Template de servicos use advance24x7-service max_check_attempts 3 check_interval 3 retry_interval 1 notification_interval 45 notification_period 24x7 notification_options w,c,r notifications_enabled 1 contact_groups WISESRV-critical register 0 } define service { name advance24x7-service use generic-service max_check_attempts 5 check_interval 5 retry_interval 1 check_period 24x7 notification_interval 60 notification_period 24x7 notification_options w,c,r notifications_enabled 1 contact_groups WISESRV-critical stalking_options w,c register 0 } define service { name generic-service is_volatile 0 max_check_attempts 5 check_interval 60 retry_interval 15 active_checks_enabled 1 passive_checks_enabled 1 check_period none parallelize_check 1 obsess_over_service 1 check_freshness 0 event_handler_enabled 1 flap_detection_enabled 1 process_perf_data 1 retain_status_information 1 retain_nonstatus_information 1 notification_interval 60 notification_period none notification_options w,u,c,r notifications_enabled 1 contact_groups admins stalking_options o,w,u,c failure_prediction_enabled 1 register 0 } Can you please point me in the right direction? Am I misreading something? And sorry for the long post. I should have used some web “pasting” tool. Just remembered. J Best regards, Bruno Martins </div> </div> ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: <a href="http://p.sf.net/sfu/appdyn_sfd2d_oct" target="_blank">http://p.sf.net/sfu/appdyn_sfd2d_oct</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div>