diff --git a/cmd/main.go b/cmd/main.go
index ae785a4d..5808b596 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -70,6 +70,12 @@ func main() {
 		log.Fatal().Err(err).Msg("Cannot initialize Diun")
 	}
 
+	// Test notif
+	if cli.TestNotif {
+		diun.TestNotif()
+		return
+	}
+
 	// Start
 	if err = diun.Start(); err != nil {
 		log.Fatal().Err(err).Msg("Cannot start Diun")
diff --git a/doc/install/binary.md b/doc/install/binary.md
index 066135b5..530ac6aa 100644
--- a/doc/install/binary.md
+++ b/doc/install/binary.md
@@ -21,14 +21,14 @@ Usage: diun --config=STRING
 Docker image update notifier. More info: https://github.com/crazy-max/diun
 
 Flags:
-  --help                 Show context-sensitive help.
+  --help                Show context-sensitive help.
   --version
-  --config=STRING        Diun configuration file ($CONFIG).
-  --timezone="UTC"       Timezone assigned to Diun ($TZ).
-  --log-level="debug"    Set log level ($LOG_LEVEL).
-  --log-json             Enable JSON logging output ($LOG_JSON).
-  --log-caller           Add file:line of the caller to log output
-                         ($LOG_CALLER).
+  --config=STRING       Diun configuration file ($CONFIG).
+  --timezone="UTC"      Timezone assigned to Diun ($TZ).
+  --log-level="info"    Set log level ($LOG_LEVEL).
+  --log-json            Enable JSON logging output ($LOG_JSON).
+  --log-caller          Add file:line of the caller to log output ($LOG_CALLER).
+  --test-notif          Test notification settings.
 ```
 
 ## Server configuration
diff --git a/doc/usage.md b/doc/usage.md
index 04e9f829..a1a6f91f 100644
--- a/doc/usage.md
+++ b/doc/usage.md
@@ -11,3 +11,4 @@
 * `--log-level <level>`: Log level output. (default `info`).
 * `--log-json`: Enable JSON logging output. (default `false`).
 * `--log-caller`: Add file:line of the caller to log output. (default `false`).
+* `--test-notif`: Enable to test notification settings.
diff --git a/internal/app/diun.go b/internal/app/diun.go
index 482e6aa5..a54bf24a 100644
--- a/internal/app/diun.go
+++ b/internal/app/diun.go
@@ -15,6 +15,7 @@ import (
 	dockerPrd "github.com/crazy-max/diun/internal/provider/docker"
 	filePrd "github.com/crazy-max/diun/internal/provider/file"
 	swarmPrd "github.com/crazy-max/diun/internal/provider/swarm"
+	"github.com/crazy-max/diun/pkg/registry"
 	"github.com/hako/durafmt"
 	"github.com/panjf2000/ants/v2"
 	"github.com/robfig/cron/v3"
@@ -144,3 +145,44 @@ func (di *Diun) Close() {
 		log.Warn().Err(err).Msg("Cannot close database")
 	}
 }
+
+// TestNotif test the notification settings
+func (di *Diun) TestNotif() {
+	createdAt, _ := time.Parse("2006-01-02T15:04:05Z", "2020-03-26T12:23:56Z")
+	image, _ := registry.ParseImage("crazymax/diun:latest")
+
+	log.Info().Msg("Testing notification settings...")
+	di.notif.Send(model.NotifEntry{
+		Status:   "new",
+		Provider: "file",
+		Image:    image,
+		Manifest: registry.Manifest{
+			Name:          "docker.io/crazymax/diun",
+			Tag:           "latest",
+			MIMEType:      "application/vnd.docker.distribution.manifest.list.v2+json",
+			Digest:        "sha256:216e3ae7de4ca8b553eb11ef7abda00651e79e537e85c46108284e5e91673e01",
+			Created:       &createdAt,
+			DockerVersion: "",
+			Labels: map[string]string{
+				"maintainer":                      "CrazyMax",
+				"org.label-schema.build-date":     "2020-03-26T12:23:56Z",
+				"org.label-schema.description":    "Docker image update notifier",
+				"org.label-schema.name":           "Diun",
+				"org.label-schema.schema-version": "1.0",
+				"org.label-schema.url":            "https://github.com/crazy-max/diun",
+				"org.label-schema.vcs-ref":        "e13f097c",
+				"org.label-schema.vcs-url":        "https://github.com/crazy-max/diun",
+				"org.label-schema.vendor":         "CrazyMax",
+				"org.label-schema.version":        "2.6.1",
+			},
+			Layers: []string{
+				"sha256:aad63a9339440e7c3e1fff2b988991b9bfb81280042fa7f39a5e327023056819",
+				"sha256:166c6f165b73185ede72415d780538a55c0c8e854bd177925bc007193e5b0d1b",
+				"sha256:e05682efa9cc9d6239b2b9252fe0dc1e58d6e1585679733bb94a6549d49e9b10",
+				"sha256:c6a5bfed445b3ed7e85523cd73c6532ac9f9b72bb588ca728fd5b33987ca6538",
+				"sha256:df2140efb8abeb727ef0b27ff158b7010a7941eb1cfdade505f510a6e1eaf016",
+			},
+			Platform: "linux/adm64",
+		},
+	})
+}
diff --git a/internal/model/cli.go b/internal/model/cli.go
index db7ee872..9e3489d1 100644
--- a/internal/model/cli.go
+++ b/internal/model/cli.go
@@ -10,4 +10,5 @@ type Cli struct {
 	LogLevel  string `kong:"name='log-level',env='LOG_LEVEL',default='info',help='Set log level.'"`
 	LogJSON   bool   `kong:"name='log-json',env='LOG_JSON',default='false',help='Enable JSON logging output.'"`
 	LogCaller bool   `kong:"name='log-caller',env='LOG_CALLER',default='false',help='Add file:line of the caller to log output.'"`
+	TestNotif bool   `kong:"name='test-notif',default='false',help='Test notification settings.'"`
 }