diff --git a/frontend/src/i18n/en-US.js b/frontend/src/i18n/en-US.js
index 720a7e299e56d6bc6415ff4e23c502fd978607f7..7d53bae9e3330b9888db99a3bc8e1b4a13311f46 100644
--- a/frontend/src/i18n/en-US.js
+++ b/frontend/src/i18n/en-US.js
@@ -500,6 +500,10 @@ export default {
     'SMTP_port': 'SMTP port',
     'SMTP_account': 'SMTP account',
     'SMTP_password': 'SMTP password',
+    'SSL': 'Turn on SSL (if the SMTP port is 465, you usually need to enable SSL)',
+    'TLS': 'Turn on TLS (if the SMTP port is 587, you usually need to enable TLS)',
+    'SMTP': 'Anonymous SMTP or not',
+
   },
   i18n: {
     'home': 'Home'