diff --git a/pkg/mail/mail.go b/pkg/mail/mail.go
index 824db0876e..98ae70af56 100644
--- a/pkg/mail/mail.go
+++ b/pkg/mail/mail.go
@@ -48,7 +48,6 @@ func getClient() (*mail.Client, error) {
 	}
 
 	opts := []mail.Option{
-		mail.WithSMTPAuth(authType),
 		mail.WithPort(config.MailerPort.GetInt()),
 		mail.WithTLSPolicy(tlsPolicy),
 		//#nosec G402
@@ -58,6 +57,10 @@ func getClient() (*mail.Client, error) {
 		}),
 	}
 
+	if config.MailerUsername.GetString() != "" && config.MailerPassword.GetString() != "" {
+		opts = append(opts, mail.WithSMTPAuth(authType))
+	}
+
 	if config.MailerUsername.GetString() != "" {
 		opts = append(opts, mail.WithUsername(config.MailerUsername.GetString()))
 	}