switch smtp and ses

src/server/service/mail.js

@@ -71,8 +71,11 @@ class MailService extends S2sMessageHandlable {
     }
 
     const transmissionMethod = configManager.getConfig('crowi', 'mail:transmissionMethod');
+
+    if (transmissionMethod === 'smtp') {
       this.mailer = this.createSMTPClient();
     }
+    else if (transmissionMethod === 'ses') {
       this.mailer = this.createSESClient();
     }
     else {