$this to(mixed $users) Set the recipients of the message.

$this replyTo(string|array $address, string|null $name = null) Add a reply

void send(Mailer $mailer)

start() {@inheritdoc}

void registerSwiftMailer() Register the Swift Mailer instance.

void __construct(ClientInterface $client, string $key, array $options = array())

stop() {@inheritdoc}

Mailable class Mailable implements

mixed send(Mailable $mailable)

string getKey() Get the API key being used by the transport.