diff --git a/config.yaml.example b/config.yaml.example
index ba4e7ec..dd0aa3c 100644
--- a/config.yaml.example
+++ b/config.yaml.example
@@ -37,10 +37,11 @@ storage:
   dubious_process_list_file: "dubious_processes.data"
 
 notification:
+  interval: 5 # minutes
   email:
     enabled: true
     recipients:
-      - admin@wuko.top
+      -
     smtp:
       server:
       port: 465
diff --git a/internal/config/config.go b/internal/config/config.go
index b7356cc..5469b75 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -9,7 +9,8 @@ type Config struct {
 }
 
 type NotificationConfig struct {
-	Email EmailConfig `yaml:"email"`
+	Email    EmailConfig `yaml:"email"`
+	Interval int         `yaml:"interval"`
 }
 
 type EmailConfig struct {
diff --git a/internal/notifier/alert_manager.go b/internal/notifier/alert_manager.go
index 18a77e0..28fb97d 100644
--- a/internal/notifier/alert_manager.go
+++ b/internal/notifier/alert_manager.go
@@ -34,7 +34,7 @@ func NewAlerter(cfg config.NotificationConfig) *Alerter {
 		mailer:    mail.NewMailer(cfg.Email),
 		eventChan: make(chan AlertEvent, 100),
 		buffer:    make([]AlertEvent, 0),
-		interval:  30 * time.Second, // Todo: 可配置化
+		interval:  time.Duration(cfg.Interval) * time.Minute,
 	}
 }