backends.py 文件源码

def copy_message(msg):
    return EmailMultiAlternatives(
        to=msg.to,
        cc=msg.cc,
        bcc=msg.bcc,
        reply_to=msg.reply_to,
        from_email=msg.from_email,
        subject=msg.subject,
        body=msg.body,
        alternatives=getattr(msg, 'alternatives', []),
        attachments=msg.attachments,
        headers=msg.extra_headers,
        connection=msg.connection)