Method _create_sender_factory

scrapy/mail.py:221–244

(
        self, to_addrs: list[str], msg: IO[bytes], d: Deferred[Any]
    )

        return d

    def _create_sender_factory(
        self, to_addrs: list[str], msg: IO[bytes], d: Deferred[Any]
    ) -> ESMTPSenderFactory:
        # imports twisted.internet.reactor
        from twisted.mail.smtp import ESMTPSenderFactory  # noqa: PLC0415

        factory_keywords: dict[str, Any] = {
            "heloFallback": True,
            "requireAuthentication": False,
            "requireTransportSecurity": self.smtptls,
            "hostname": self.smtphost,
        }

        factory = ESMTPSenderFactory(
            self.smtpuser,
            self.smtppass,
            self.mailfrom,
            to_addrs,
            msg,
            d,
            **factory_keywords,
        )
        factory.noisy = False
        return factory