Subscribe fails relay not permitted v3.6.4

[muecke]

phpList 3.6.4 SMTP code: 550

That’s very strange. That must be something else. This line definitely says that if this constant is empty, then go to the next option If you want to be sure, change this line from } elseif (!$this->inBlast && empty($_SESSION['adminloggedin']) && to } elseif (false && !$this->inBlast && empty($_SESSION['adminloggedin']) &&