diff --git a/app/main/views/service_settings.py b/app/main/views/service_settings.py
index 95a72cfe8..d892c18b5 100644
--- a/app/main/views/service_settings.py
+++ b/app/main/views/service_settings.py
@@ -19,6 +19,7 @@ from app import (
     email_branding_client,
     inbound_number_client,
     letter_branding_client,
+    notification_api_client,
     organisations_client,
     service_api_client,
     user_api_client,
@@ -403,18 +404,29 @@ def service_add_email_reply_to(service_id):
     form = ServiceReplyToEmailForm()
     first_email_address = current_service.count_email_reply_to_addresses == 0
     if form.validate_on_submit():
-        service_api_client.add_reply_to_email_address(
-            current_service.id,
-            email_address=form.email_address.data,
-            is_default=first_email_address if first_email_address else form.is_default.data
-        )
-        return redirect(url_for('.service_email_reply_to', service_id=service_id))
+        notification_id = service_api_client.verify_reply_to_email_address(form.email_address.data)["data"]["id"]
+        return redirect(url_for('.verify_reply_to_address', service_id=service_id, notification_id=notification_id))
+        # service_api_client.add_reply_to_email_address(
+        #     current_service.id,
+        #     email_address=form.email_address.data,
+        #     is_default=first_email_address if first_email_address else form.is_default.data
+        # )
+        # return redirect(url_for('.service_email_reply_to', service_id=service_id))
     return render_template(
         'views/service-settings/email-reply-to/add.html',
         form=form,
         first_email_address=first_email_address)
 
 
+@main.route("/services/<service_id>/service-settings/email-reply-to/<notification_id>/verify", methods=['GET', 'POST'])
+@login_required
+@user_has_permissions('manage_service')
+def verify_reply_to_address(service_id, notification_id):
+    return render_template(
+        'views/service-settings/email-reply-to/verify.html'
+    )
+
+
 @main.route(
     "/services/<service_id>/service-settings/email-reply-to/<reply_to_email_id>/edit",
     methods=['GET', 'POST'],
diff --git a/app/notify_client/service_api_client.py b/app/notify_client/service_api_client.py
index 336c1c4f9..561982e82 100644
--- a/app/notify_client/service_api_client.py
+++ b/app/notify_client/service_api_client.py
@@ -386,6 +386,12 @@ class ServiceAPIClient(NotifyAdminAPIClient):
             )
         )
 
+    def verify_reply_to_email_address(self, email_address):
+        return self.post(
+            "/service/email-reply-to/verify",
+            data={"email": email_address}
+        )
+
     @cache.delete('service-{service_id}')
     def add_reply_to_email_address(self, service_id, email_address, is_default=False):
         return self.post(
diff --git a/tests/app/main/views/test_service_settings.py b/tests/app/main/views/test_service_settings.py
index ff0b62dfa..6d7832204 100644
--- a/tests/app/main/views/test_service_settings.py
+++ b/tests/app/main/views/test_service_settings.py
@@ -2029,6 +2029,44 @@ def test_add_reply_to_email_address(
     )
 
 
+@pytest.mark.parametrize('fixture, data, api_default_args', [
+    (no_reply_to_email_addresses, {}, True),
+    (multiple_reply_to_email_addresses, {}, False),
+    (multiple_reply_to_email_addresses, {"is_default": "y"}, True)
+])
+def test_add_reply_to_email_address_sends_test_notification(
+    mocker, client_request, fixture, data, api_default_args
+):
+    fixture(mocker)
+    data['email_address'] = "test@example.com"
+    mock_verify = mocker.patch('app.service_api_client.verify_reply_to_email_address', return_value={"id": "123"})
+    client_request.post(
+        'main.service_add_email_reply_to',
+        service_id=SERVICE_ONE_ID,
+        _data=data,
+        _expected_status=302,
+        _expected_redirect=url_for(
+            'main.verify_reply_to_address',
+            service_id=SERVICE_ONE_ID,
+            notification_id="123",
+            _external=True,
+        )
+    )
+    mock_verify.assert_called_once_with("test@example.com")
+
+
+def test_add_reply_to_email_address_waiting_page():
+    pass
+
+
+def test_add_reply_to_email_address_success():
+    pass
+
+
+def test_add_reply_to_email_address_failure():
+    pass
+
+
 @pytest.mark.parametrize('fixture, data, api_default_args', [
     (no_letter_contact_blocks, {}, True),
     (multiple_letter_contact_blocks, {}, False),