Nagios doesn't send services alert - nagios

Question

I use Nagios Core 4.4.6. I want Nagios to send services email notifications.
I've used notify-host-by-email already and now want to use notify-service-by-email.
If I use 'Send custom service notification' it success. But auto-alerts doesn't work.
templates.cfg
define contact {
name generic-contact ; The name of this contact template
service_notification_period 24x7 ; service notifications can be sent anytime
host_notification_period 24x7 ; host notifications can be sent anytime
service_notification_options w,u,c,r,f,s ; send notifications for all service states,$
host_notification_options d,u,r,f,s ; send notifications for all host states, fl$
service_notification_commands notify-service-by-email ; send service notifications via email
host_notification_commands notify-host-by-email ; send host notifications via email
register 0 ; DON'T REGISTER THIS DEFINITION - ITS NOT A$
}
define host {
name generic-host ; The name of this host template
notifications_enabled 1 ; Host notifications are enabled
event_handler_enabled 1 ; Host event handler is enabled
flap_detection_enabled 0 ; Flap detection is enabled
process_perf_data 1 ; Process performance data
retain_status_information 1 ; Retain status information across program r$
retain_nonstatus_information 1 ; Retain non-status information across progr$
notification_period 24x7 ; Send host notifications at any time
register 0 ; DON'T REGISTER THIS DEFINITION - ITS NOT A$
}
define host {
name linux-server ; The name of this host template
use generic-host ; This template inherits other values from t$
check_period 24x7 ; By default, Linux hosts are checked round $
check_interval 5 ; Actively check the host every 5 minutes
retry_interval 1 ; Schedule host check retries at 1 minute in$
max_check_attempts 10 ; Check each Linux host 10 times (max)
check_command check-host-alive ; Default command to check Linux hosts
notification_period workhours ; Linux admins hate to be woken up, so we on$
; Note that the notification_period variable$
; the value that is inherited from the gener$
notification_interval 120 ; Resend notifications every 2 hours
notification_options d,u,r ; Only send notifications for specific host $
contact_groups admins ; Notifications get sent to the admins by de$
register 0 ; DON'T REGISTER THIS DEFINITION - ITS NOT A$
}
define service {
name generic-service ; The 'name' of thi$
active_checks_enabled 1 ; Active service ch$
passive_checks_enabled 1 ; Passive service c$
parallelize_check 1 ; Active service ch$
obsess_over_service 1 ; We should obsess $
check_freshness 0 ; Default is to NOT$
notifications_enabled 1 ; Service notificat$
event_handler_enabled 1 ; Service event han$
flap_detection_enabled 1 ; Flap detection is$
process_perf_data 1 ; Process performan$
retain_status_information 1 ; Retain status inf$
retain_nonstatus_information 1 ; Retain non-status$
is_volatile 0 ; The service is no$
check_period 24x7 ; The service can b$
max_check_attempts 3 ; Re-check the serv$
check_interval 10 ; Check the service$
retry_interval 2 ; Re-check the serv$
contact_groups admins ; Notifications get$
notification_options w,u,c,r ; Send notification$
notification_interval 60 ; Re-notify about s$
notification_period 24x7 ; Notifications can$
register 0 ; DON'T REGISTER TH$
}
# Local service definition template
# This is NOT a real service, just a template!
define service {
name local-service ; The name of this $
use generic-service ; Inherit default v$
max_check_attempts 4 ; Re-check the serv$
check_interval 5 ; Check the service$
retry_interval 1 ; Re-check the serv$
register 0 ; DONT REGISTER THI$
}
test_server.cfg
define host {
use linux-server
host_name test_server
alias test_server
address 111.111.111.11 ; sample address
notification_interval 5
notification_period 24x7
}
define service {
use local-service ; Name of service template to use
host_name test_server
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service {
use local-service ; Name of service template to use
host_name test_server
service_description SSH
check_command check_ssh
notification_interval 5
}
define service {
use local-service ; Name of service template to use
host_name test_server
service_description HTTP
check_command check_http
notification_interval 5
}
contacts.cfg
define contact {
contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from generic-contact templa$
alias Nagios Admin ; Full name of user
email gmail#gmail.com ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ****$
}
define contactgroup {
contactgroup_name admins
alias Nagios Administrators
members nagiosadmin
}
How can I force nagios to send notification about services alerts?