src/Manager.php
public function createMessage()
    {
        $eventsManager = $this->getEventsManager();
        if ($eventsManager) {
            $eventsManager->fire('mailer:beforeCreateMessage', $this);
        }

        /** @var $message Message */
        $message = $this->getDI()->get('\Baka\Mail\Message', [$this]);
        if (($from = $this->getConfig('from'))) {
            $message->from($from['email'], isset($from['name']) ? $from['name'] : null);
        }

        if ($eventsManager) {
            $eventsManager->fire('mailer:afterCreateMessage', $this, $message);
        }
        return $message;
    }
public function createMessage()
    {
        $eventsManager = $this->getEventsManager();
        if ($eventsManager) {
            $eventsManager->fire('mailer:beforeCreateMessage', $this);
        }

        /** @var $message Message */
        $message = $this->getDI()->get('\Baka\Mail\Message', [$this]);
        if (($from = $this->getConfig('from'))) {
            $message->from($from['email'], isset($from['name']) ? $from['name'] : null);
        }

        if ($eventsManager) {
            $eventsManager->fire('mailer:afterCreateMessage', $this, $message);
        }
        return $message;
    }
Overwrite this funciton to use ower mail message

Create a new Message instance.

Events:
- mailer:beforeCreateMessage
- mailer:afterCreateMessage

@return \Phalcon\Mailer\Message