python - SMTPAuthenticationError-535，b'5.7.8用户名和密码不被接受。 -从Docker发送电子邮件

Question

我正在尝试从Ubuntu上的docker中的django应用发送电子邮件，并且收到以下消息:

Request Method: GET
Request URL:    https://localhost:8001/accounts/mail/
Django Version: 2.2.5
Exception Type: SMTPAuthenticationError
Exception Value:    
(535, b'5.7.8 Username and Password not accepted. Learn more at\n5.7.8  https://support.google.com/mail/?p=BadCredentials x76sm1225174ljb.81 - gsmtp')
Exception Location: /usr/local/lib/python3.7/smtplib.py in auth, line 642
Python Executable:  /usr/local/bin/python
Python Version: 3.7.4

在docker外部发送电子邮件没有问题。

我尝试了 Google troubleshooting steps的每一步。目前，我有两步验证，适用于本地应用程序，但仍然不适用于docker one。

我不一定需要Google SMTP(我在那里有一个帐户)，但是我要实现的目标是在注册Django应用程序后向用户发送带有激活链接的电子邮件。

我尝试不使用2因子身份验证-相同的结果。我在网络服务中的docker-compose设置:

services:
  web:
    build: ./app
    command: python manage.py runsslserver 0.0.0.0:8001
    stdin_open: true
    tty: true
    volumes:
      - ./app/:/usr/src/app/
      - /etc/localtime:/etc/localtime
      - /etc/timezone:/etc/timezone
    ports:
      - 8001:8001
      - 587:587
      - 25:25
      - 465:465

以及发送电子邮件的代码(可在docker外部运行):

def email(request):
    mail_subject = 'Activate your account'
    message = 'test'
    to_email = 'example@example.com'
    email = EmailMessage(
        mail_subject, message, to=[to_email]
    )
    email.send()
    return redirect('index')

settings.py

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_USE_TLS = True
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_HOST_USER = 'example@example.com'  
EMAIL_HOST_PASSWORD = '***'  
EMAIL_PORT = 587

Answer 1

问题解决了!我已经为发送电子邮件应用了不同的代码。

import smtplib
import ssl

def email(request):
    port = settings.EMAIL_PORT
    smtp_server = settings.EMAIL_HOST
    sender_email = settings.EMAIL_HOST_USER
    password = settings.EMAIL_HOST_PASSWORD
    receiver_email = 'example@example.com'
    subject = 'Website registration'
    body = 'Activate your account.'
    message = 'Subject: {}\n\n{}'.format(subject, body)
    context = ssl.create_default_context()
    with smtplib.SMTP(smtp_server, port) as server:
        server.ehlo()  # Can be omitted
        server.starttls(context=context)
        server.ehlo()  # Can be omitted
        server.login(sender_email, password)
        server.sendmail(sender_email, receiver_email, message)
    return redirect('index')

我仍然想知道这是否是从Django设置传递变量的正确方法。我是用优雅的方式做吗，有必要吗？这是smtp的最佳方法吗？