send_mass_emails和EmailMultiAlternatives

send_mass_emails和EmailMultiAlternatives

不能直接将send_mass_mail（）与EmailMultiAlternatives一起使用。但是，根据Django文档，send_mass_mail（）只是使用EmailMessage类的包装器。EmailMultiAlternatives是EmailMessage的子类。EmailMessage具有一个“连接”参数，允许你指定将消息发送给所有收件人时要使用的单个连接，即与send_mass_mail（）提供的功能相同。你可以使用get_connection（）函数来获取settings.py中SMTP设置所定义的SMTP连接。

我相信以下（未经测试）的代码应该可以工作：

from django.core.mail import get_connection, EmailMultiAlternativesconnection = get_connection() # uses SMTP server specified in settings.pyconnection.open() # If you don't open the connection manually, Django will automatically open, then tear down the connection in msg.send()html_content = render_to_string('newsletter.html', {'newsletter': n,})    text_content = "..."msg = EmailMultiAlternatives("subject", text_content, "from@bla", ["to@bla", "to2@bla", "to3@bla"], connection=connection)     msg.attach_alternative(html_content, "text/html")          msg.send() connection.close() # Cleanup