我知道这是一个老问题，但我也知道有些人就像我一样，总是在寻找最新的答案，因为旧的答案如果不更新有时会有过时的信息。

现在是2020年1月，我使用的是Django 2.2.6和Python 3.7

注意:我使用DJANGO REST框架，下面发送电子邮件的代码是在我的views.py的模型视图集中

所以在看了很多不错的答案之后，我就这么做了。

from django.template.loader import render_to_string
from django.core.mail import EmailMultiAlternatives

def send_receipt_to_email(self, request):

    emailSubject = "Subject"
    emailOfSender = "email@domain.com"
    emailOfRecipient = 'xyz@domain.com'

    context = ({"name": "Gilbert"}) #Note I used a normal tuple instead of  Context({"username": "Gilbert"}) because Context is deprecated. When I used Context, I got an error > TypeError: context must be a dict rather than Context

    text_content = render_to_string('receipt_email.txt', context, request=request)
    html_content = render_to_string('receipt_email.html', context, request=request)

    try:
        #I used EmailMultiAlternatives because I wanted to send both text and html
        emailMessage = EmailMultiAlternatives(subject=emailSubject, body=text_content, from_email=emailOfSender, to=[emailOfRecipient,], reply_to=[emailOfSender,])
        emailMessage.attach_alternative(html_content, "text/html")
        emailMessage.send(fail_silently=False)

    except SMTPException as e:
        print('There was an error sending an email: ', e) 
        error = {'message': ",".join(e.args) if len(e.args) > 0 else 'Unknown Error'}
        raise serializers.ValidationError(error)

重要!那么render_to_string如何获得receipt_email.txt和receipt_email.html? 在我的settings.py中，我有TEMPLATES，下面是它的外观

注意DIRS，这里有一行os。path。join(BASE_DIR， 'templates'， 'email_templates') 这一行使我的模板可访问。在我的project_dir中，我有一个文件夹叫做templates，还有一个子目录叫做email_templates，就像这个project_dir->templates->email_templates。我的模板receipt_email.txt和receipt_email.html在email_templates子目录下。

TEMPLATES = [
{
    'BACKEND': 'django.template.backends.django.DjangoTemplates',
    'DIRS': [os.path.join(BASE_DIR, 'templates'), os.path.join(BASE_DIR, 'templates', 'email_templates')],
    'APP_DIRS': True,
    'OPTIONS': {
        'context_processors': [
            'django.template.context_processors.debug',
            'django.template.context_processors.request',
            'django.contrib.auth.context_processors.auth',
            'django.contrib.messages.context_processors.messages',
        ],
    },
},
]

我再加上，我的receit_email。txt是这样的;

Dear {{name}},
Here is the text version of the email from template

我的receipt_email。html是这样的;

Dear {{name}},
<h1>Now here is the html version of the email from the template</h1>

我写了一个代码片段，允许您发送使用存储在数据库中的模板渲染的电子邮件。一个例子:

EmailTemplate.send('expense_notification_to_admin', {
    # context object that email template will be rendered with
    'expense': expense_request,
})

我喜欢使用这个工具，允许轻松地发送电子邮件HTML和TXT与简单的上下文处理:https://github.com/divio/django-emailit

Django Mail Templated是一个功能丰富的Django应用程序，可以用Django模板系统发送电子邮件。

安装:

pip install django-mail-templated

配置:

INSTALLED_APPS = (
    ...
    'mail_templated'
)

模板:

{% block subject %}
Hello {{ user.name }}
{% endblock %}

{% block body %}
{{ user.name }}, this is the plain text part.
{% endblock %}

Python:

from mail_templated import send_mail
send_mail('email/hello.tpl', {'user': user}, from_email, [user.email])

更多信息:https://github.com/artemrizhov/django-mail-templated

如果您想要为您的邮件设置动态电子邮件模板，请将电子邮件内容保存在数据库表中。 这是我保存为HTML代码在database =

<p>Hello.. {{ first_name }} {{ last_name }}.  <br> This is an <strong>important</strong> {{ message }}
<br> <b> By Admin.</b>

 <p style='color:red'> Good Day </p>

在你看来:

from django.core.mail import EmailMultiAlternatives
from django.template.loader import get_template

def dynamic_email(request):
    application_obj = AppDetails.objects.get(id=1)
    subject = 'First Interview Call'
    email = request.user.email
    to_email = application_obj.email
    message = application_obj.message

    text_content = 'This is an important message.'
    d = {'first_name': application_obj.first_name,'message':message}
    htmly = FirstInterviewCall.objects.get(id=1).html_content #this is what i have saved previously in database which i have to send as Email template as mentioned above HTML code

    open("partner/templates/first_interview.html", "w").close() # this is the path of my file partner is the app, Here i am clearing the file content. If file not found it will create one on given path.
    text_file = open("partner/templates/first_interview.html", "w") # opening my file
    text_file.write(htmly) #putting HTML content in file which i saved in DB
    text_file.close() #file close

    htmly = get_template('first_interview.html')
    html_content = htmly.render(d)  
    msg = EmailMultiAlternatives(subject, text_content, email, [to_email])
    msg.attach_alternative(html_content, "text/html")
    msg.send()

这将发送您保存在Db中的动态HTML模板。

我做了django-template -email来解决这个问题，灵感来自于这个解决方案(在某些时候，需要从使用django模板切换到使用mailchimp等一组模板来处理事务，为我自己的项目创建模板邮件)。虽然这仍然是一个正在进行的工作，但对于上面的例子，你可以这样做:

from templated_email import send_templated_mail
send_templated_mail(
        'email',
        'from@example.com',
        ['to@example.com'],
        { 'username':username }
    )

在settings.py中添加以下内容(以完成示例):

TEMPLATED_EMAIL_DJANGO_SUBJECTS = {'email':'hello',}

它会自动在普通的django模板dirs/loaders中分别为plain部分和html部分寻找名为templated_email/email.txt和templated_email/email.html的模板(如果找不到其中至少一个会报错)。