diff --git a/backup.go b/backup.go
index dd87e83..58b8bd1 100644
--- a/backup.go
+++ b/backup.go
@@ -9,14 +9,15 @@ import (
 )
 
 var (
-	appFlag   = flag.String("app", "", "run specific app")
-	cfgFile   = flag.String("config", "config.json", "config file")
-	schedFlag = flag.String("schedule", "", "specific schedule")
-	slowFlag  = flag.Bool("slow", false, "slow process")
-	testFlag  = flag.Bool("test", false, "test run")
-	debugFlag = flag.Bool("debug", false, "debug")
-	cfg       Config
-	email     *Email
+	appFlag      = flag.String("app", "", "run specific app")
+	cfgFile      = flag.String("config", "config.json", "config file")
+	schedFlag    = flag.String("schedule", "", "specific schedule")
+	slowFlag     = flag.Bool("slow", false, "slow process")
+	testFlag     = flag.Bool("test", false, "test run")
+	debugFlag    = flag.Bool("debug", false, "debug")
+	testMailFlag = flag.Bool("test-mail", false, "test email setup")
+	cfg          Config
+	email        *Email
 )
 
 func main() {
@@ -34,6 +35,11 @@ func main() {
 		os.Exit(1)
 	}
 
+	if *testMailFlag {
+		SendMail(cfg.Email.smtpHost, cfg.Email.fromEmail, "test backup email topic", "test backup email body", cfg.Email.toEmail)
+		os.Exit(0)
+	}
+
 	err = RunBackup(*appFlag)
 	if err != nil {
 		log.Printf("Cannot run schedule (%s)", err)
diff --git a/email.go b/email.go
index d097bbb..8259953 100644
--- a/email.go
+++ b/email.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"encoding/base64"
+	"log"
 	"net/smtp"
 	"strings"
 	"time"
@@ -48,6 +49,10 @@ func SendMail(addr, from, subject, body string, to []string) error {
 		"Content-Transfer-Encoding: base64\r\n" +
 		"\r\n" + base64.StdEncoding.EncodeToString([]byte(body))
 
+	if *debugFlag {
+		log.Printf("SendMail :\r\n%s", msg)
+	}
+
 	_, err = w.Write([]byte(msg))
 	if err != nil {
 		return err
diff --git a/version.go b/version.go
index 3481b5b..3be5cbc 100644
--- a/version.go
+++ b/version.go
@@ -1,6 +1,6 @@
 // Code generated by version.sh (@generated) DO NOT EDIT.
 package main
-var githash = "7c309b8"
-var buildstamp = "2022-06-19_03:58:59"
-var commits = "42"
-var version = "7c309b8-b42 - 2022-06-19_03:58:59"
+var githash = "86ddd52"
+var buildstamp = "2022-06-19_04:11:44"
+var commits = "43"
+var version = "86ddd52-b43 - 2022-06-19_04:11:44"