来自EC2的Django send_mail()通过Gmail提供SMTPAuthenticationError - 但在localhost中工作正常

Question

Django项目settings.py包括以下内容:

EMAIL_BACKEND = "django.core.mail.backends.smtp.EmailBackend"
EMAIL_HOST = "smtp.gmail.com"
EMAIL_HOST_USER = "you.cant.see.me@gmail.com"
EMAIL_HOST_PASSWORD = "thug_life"
EMAIL_PORT = 587
EMAIL_USE_TLS = True

我的应用程序views.py包含以下内容

def send_classic_email(request):
    from django.core.mail import send_mail
    send_mail(
        subject = "Tale of two cities",
        from_email = "Charles Dickens <you.cant.see.me@gmail.com>",
        recipient_list = ["someone@example.com"],
        message = "There were 2 cities",
        html_message = "<p>There were 2 cities</p>",
        fail_silently = False,
    )
    print "Absolutely Perfectly Done"

从localhost尝试.得到SMTPAuthenticationError回报:

SMTPAuthenticationError at /send_classic_email/
(534, '1.3.95 <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=fsadjSADJH\n1.3.95 
fjkshFHAKSHkdfshkfkhj-sfjdhFsadASDA_\n1.3.95 
dasdASDADas-aDas-hfhjsadASDSAhjjhd\n1.3.95 
ADSaSADkja_adhjkADKjhads-ASADS_SDAKjadAKJhsADS-k\n1.3.95 
sadhkjADSAKJSDJAlkjdaA> Please log in via your web browser and\n1.3.95 
then try again.\n1.3.95  
Learn more at\n1.3.95  
https://support.google.com/mail/answer/78754 dkahASDASlkjdas.25 - gsmtp')

然后访问了https://www.google.com/settings/security/lesssecureapps并启用了该less secure app设置.

之后,再次尝试从localhost.明白啦:

完全绝对完成

在AWS EC2上部署了这个代码.从EC2尝试.SMTPAuthenticationError再次相同:

SMTPAuthenticationError at /send_classic_email/
(534, '1.3.95 <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=fsadjSADJH\n1.3.95 
fjkshFHAKSHkdfshkfkhj-sfjdhFsadASDA_\n1.3.95 
dasdASDADas-aDas-hfhjsadASDSAhjjhd\n1.3.95 
ADSaSADkja_adhjkADKjhads-ASADS_SDAKjadAKJhsADS-k\n1.3.95 
sadhkjADSAKJSDJAlkjdaA> Please log in via your web browser and\n1.3.95 
then try again.\n1.3.95  
Learn more at\n1.3.95  
https://support.google.com/mail/answer/78754 dkahASDASlkjdas.25 - gsmtp')

去了EC2安全组:

• 启用来自所有源的SMTP端口的入站规则.
• 对于出站规则,所有流量的所有端口上的所有协议到所有目标被启用.

还是一样SMTPAuthenticationError.

为什么它从localhost而不是从EC2实例工作正常？

运行Django 1.8.0上Python 2.7.6的Ubuntu 14.04.3 LTS

Answer 1

您可能需要解锁验证码才能让Django为您发送:accounts.google.com/displayunlockcaptcha

Captcha是您需要输入表单才能转到下一页的小字符.这是大多数公司所依赖的安全预防措施.

您能够在本地主机上使用它的原因是因为您实际上是控制验证码的公司.你告诉你的服务器,"无论发送什么,它都是安全的." 但是,在这种情况下,Google可以控制验证码.由于您使用的是亚马逊,因此阻止电子邮件是Google保护其服务器并确保亚马逊不是垃圾邮件的一种方式.通过单击该链接,您告诉Google允许通过您的电子邮件发送所有传出连接.

那有意义吗？