diff --git a/conf/app.ini b/conf/app.ini
index 40f987664..82dd7b47d 100644
--- a/conf/app.ini
+++ b/conf/app.ini
@@ -129,6 +129,8 @@ CERT_FILE = custom/mailer/cert.pem
 KEY_FILE = custom/mailer/key.pem
 ; Mail from address, RFC 5322. This can be just an email address, or the `"Name" <email@example.com>` format 
 FROM =
+; Fix notify mail sender address
+FIXED_NOTIFY_FROM = false
 ; Mailer user name and password
 USER =
 PASSWD =