diff --git a/assets/js/src/newsletters/send/notification.jsx b/assets/js/src/newsletters/send/notification.jsx
index 3a04d8ef44..79855b4453 100644
--- a/assets/js/src/newsletters/send/notification.jsx
+++ b/assets/js/src/newsletters/send/notification.jsx
@@ -92,6 +92,9 @@ define(
             name: 'reply_to_address',
             type: 'text',
             placeholder: MailPoet.I18n.t('replyToAddressPlaceholder'),
+            validation: {
+              'data-parsley-type': 'email',
+            },
           },
         ],
       },
diff --git a/assets/js/src/newsletters/send/standard.jsx b/assets/js/src/newsletters/send/standard.jsx
index e61dd9a839..84e5d008de 100644
--- a/assets/js/src/newsletters/send/standard.jsx
+++ b/assets/js/src/newsletters/send/standard.jsx
@@ -398,6 +398,9 @@ define(
             name: 'reply_to_address',
             type: 'text',
             placeholder: MailPoet.I18n.t('replyToAddressPlaceholder'),
+            validation: {
+              'data-parsley-type': 'email',
+            },
           },
         ],
       },
diff --git a/assets/js/src/newsletters/send/welcome.jsx b/assets/js/src/newsletters/send/welcome.jsx
index ab37fbfb49..e92f43f4d5 100644
--- a/assets/js/src/newsletters/send/welcome.jsx
+++ b/assets/js/src/newsletters/send/welcome.jsx
@@ -65,6 +65,9 @@ define(
             name: 'reply_to_address',
             type: 'text',
             placeholder: MailPoet.I18n.t('replyToAddressPlaceholder'),
+            validation: {
+              'data-parsley-type': 'email',
+            },
           },
         ],
       },