Question

我正在使用django发送大量电子邮件的服务。我有这种方法，可以很好地与芹菜一起使用

@shared_task(bind=True)
def send_mails(self,saved_id):
    text = BroadCast.objects.get(id=saved_id)
    attendees = EventAttendee.objects.filter(event__id=text.id)
    message = text.body
    subject = text.subject
    document = text.attachment
    recipient_list=[]
    for attend in attendees:

        text_content = render_to_string(template_text, {'name': attend.client_name, 'message':message})
        html_content = render_to_string(template_html, {'name': attend.client_name,'message':message})

        mail.send(
            [attend.client_email],
            email_from,
             subject=subject,
             html_message=html_content,
             attachments = {str(document):document}
        )

我的挑战是，例如如果我有1000名与会者，我将不得不打开1000个连接，我认为这是非常糟糕的。

如何重新构造它，以便仅打开一个连接并能够发送1000封电子邮件。

Answer 1

来自Django's docs

django.core.mail.send_mass_mail（）用于处理大量电子邮件。

由于要发送html，因此需要额外的步骤，请考虑以下stackoverflow answer中的以下代码：

from django.core.mail import get_connection, EmailMultiAlternatives

def send_mass_html_mail(datatuple, fail_silently=False, user=None, password=None, 
                        connection=None):
    """
    Given a datatuple of (subject, text_content, html_content, from_email,
    recipient_list), sends each message to each recipient list. Returns the
    number of emails sent.

    If from_email is None, the DEFAULT_FROM_EMAIL setting is used.
    If auth_user and auth_password are set, they're used to log in.
    If auth_user is None, the EMAIL_HOST_USER setting is used.
    If auth_password is None, the EMAIL_HOST_PASSWORD setting is used.

    """
    connection = connection or get_connection(
        username=user, password=password, fail_silently=fail_silently)
    messages = []
    for subject, text, html, from_email, recipient in datatuple:
        message = EmailMultiAlternatives(subject, text, from_email, recipient)
        message.attach_alternative(html, 'text/html')
        messages.append(message)
    return connection.send_messages(messages)

Answer 2

那么您可能想使用send_mass_mail

将仅打开与邮件服务器的一个连接

因此，为要发送的所有电子邮件构造一个消息元组。（链接的官方文档很好地解释了用法）

Django发送大量电子邮件

2 个答案: