django-ses

========== Django-SES

:Info: A Django email backend for Amazon's Simple Email Service :Author: Harry Marr (http://github.com/hmarr, http://twitter.com/harrymarr) :Collaborators: Paul Craciunoiu (http://github.com/pcraciunoiu, http://twitter.com/embrangler)

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A bird's eye view

Django-SES is a drop-in mail backend for Django_. Instead of sending emails through a traditional SMTP mail server, Django-SES routes email through Amazon Web Services' excellent Simple Email Service (SES_).

Django-SES can also receive emails using SES Email receiving_

.. _SES: http://aws.amazon.com/ses/ .. _Django: http://djangoproject.com .. _SES Email receiving: https://docs.aws.amazon.com/ses/latest/dg/receiving-email.html

Please Contribute!

This project is maintained, but not actively used by the maintainer. Interested in helping maintain this project? Reach out via GitHub Issues if you're actively using django-ses and would be interested in contributing to it.

Changelog

For details about each release, see the GitHub releases page: https://github.com/django-ses/django-ses/releases or CHANGES.md.

Using Django directly

Amazon SES allows you to also setup usernames and passwords. If you do configure things that way, you do not need this package. The Django default email backend is capable of authenticating with Amazon SES and correctly sending email.

Using django-ses gives you additional features like deliverability reports that can be hard and/or cumbersome to obtain when using the SMTP interface.

Why SES instead of SMTP?

Configuring, maintaining, and dealing with some complicated edge cases can be time-consuming. Sending emails with Django-SES might be attractive to you if:

• You don't want to maintain mail servers.
• You are already deployed on EC2 (In-bound traffic to SES is free from EC2 instances).
• You need to send a high volume of email.
• You don't want to have to worry about PTR records, Reverse DNS, email whitelist/blacklist services.
• You want to improve delivery rate and inbox cosmetics by DKIM signing your messages using SES's Easy DKIM feature.
• Django-SES is a truely drop-in replacement for the default mail backend. Your code should require no changes.

Why SES instead of IMAP/POP?

Configuring, maintaining, and dealing with some complicated edge cases can be time-consuming. REceiving emails with Django-SES might be attractive to you if:

• You don't want to maintain mail servers.
• You want programatic access to received emails.
• You want to react to received emails as soon as they are received.

Getting going

Assuming you've got Django_ installed, you'll just need to install django-ses::

pip install django-ses

To receive bounces or webhook events install the events "extra"::

pip install django-ses[events]

Add the following to your settings.py::

EMAIL_BACKEND = 'django_ses.SESBackend'

# These are optional if you are using AWS IAM Roles https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles.html
AWS_ACCESS_KEY_ID = 'YOUR-ACCESS-KEY-ID'
AWS_SECRET_ACCESS_KEY = 'YOUR-SECRET-ACCESS-KEY'
# https://docs.aws.amazon.com/cli/v1/userguide/cli-configure-files.html
AWS_SESSION_PROFILE = 'YOUR-PROFILE-NAME'
# Additionally, if you are not using the default AWS region of us-east-1,
# you need to specify a region, like so:
AWS_SES_REGION_NAME = 'us-west-2'
AWS_SES_REGION_ENDPOINT = 'email.us-west-2.amazonaws.com'

# If you want to use the SESv2 client
USE_SES_V2 = True

Alternatively, instead of AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY, you can include the following two settings values. This is useful in situations where you would like to use a separate access key to send emails via SES than you would to upload files via S3::

AWS_SES_ACCESS_KEY_ID = 'YOUR-ACCESS-KEY-ID'
AWS_SES_SECRET_ACCESS_KEY = 'YOUR-SECRET-ACCESS-KEY'

Now, when you use django.core.mail.send_mail, Simple Email Service will send the messages by default.

Since SES imposes a rate limit and will reject emails after the limit has been reached, django-ses will attempt to conform to the rate limit by querying the API for your current limit and then sending no more than that number of messages in a two-second period (which is half of the rate limit, just to be sure to stay clear of the limit). This is controlled by the following setting:

AWS_SES_AUTO_THROTTLE = 0.5 # (default; safety factor applied to rate limit)

To turn off automatic throttling, set this to None.

Check out the example directory for more information.

Monitoring email status using Amazon Simple Notification Service (Amazon SNS)

To set this up, install django-ses with the events extra::

pip install django-ses[events]

Then add a event url handler in your urls.py::

from django.urls import re_path
from django_ses.views import SESEventWebhookView
from django.views.decorators.csrf import csrf_exempt
urlpatterns = [ ...
        re_path(r'^ses/event-webhook/$', SESEventWebhookView.as_view(), name='handle-event-webhook'),
        ...
]

SESEventWebhookView handles bounce, complaint, send, delivery, open and click events. It is also capable of auto confirming subscriptions, it handles SubscriptionConfirmation notification.

On AWS

1. Add an SNS topic.

2. In SES setup an SNS destination in "Configuration Sets". Use this configuration set by setting AWS_SES_CONFIGURATION_SET. Set the topic to what you created in 1.

3. Add an https subscriber to the topic. (eg. https://www.yourdomain.com/ses/event-webhook/) Do not check "Enable raw message delivery".

Bounces

Using signal 'bounce_received' for manager bounce email. For example::

from django_ses.signals import bounce_received
from django.dispatch import receiver


@receiver(bounce_received)
def bounce_handler(sender, mail_obj, bounce_obj, raw_message, *args, **kwargs):
    # you can then use the message ID and/or recipient_list(email address) to identify any problematic email messages that you have sent
    message_id = mail_obj['messageId']
    recipient_list = mail_obj['destination']
    ...
    print("This is bounce email object")
    print(mail_obj)

The most common use case for irrecoverable bounces (status 5xx) is to add the email(s) that caused the bounce to a blacklist in order to avoid sending more emails and triggering more bounces. django-ses provides a builtin blacklist that does this. Check AWS_SES_ADD_BOUNCE_TO_BLACKLIST and AWS_SES_USE_BLACKLIST.

Complaint

Using signal 'complaint_received' for manager complaint email. For example::

from django_ses.signals import complaint_received
from django.dispatch import receiver


@receiver(complaint_received)
def complaint_handler(sender, mail_obj, complaint_obj, raw_message,  *args, **kwargs):
    ...

The most common use case for complaints is to add the email(s) that caused the complaint to a blacklist in order to avoid sending more emails and triggering more complaints. django-ses provides a builtin blacklist that does this. Check AWS_SES_ADD_COMPLAINT_TO_BLACKLIST and AWS_SES_USE_BLACKLIST.

Send

Using signal 'send_received' for manager send email. For example::

from django_ses.signals import send_received
from django.dispatch import receiver


@receiver(send_received)
def send_handler(sender, mail_obj, raw_message,  *args, **kwargs):
    ...

Delivery

Using signal 'delivery_received' for manager delivery email. For example::

from django_ses.signals import delivery_received
from django.dispatch import receiver


@receiver(delivery_received)
def delivery_handler(sender, mail_obj, delivery_obj, raw_message,  *args, **kwargs):
    ...

Open

Using signal 'open_received' for manager open email. For example::

from django_ses.signals import open_received
from django.dispatch import receiver


@receiver(open_received)
def open_handler(sender, mail_obj, open_obj, raw_message, *args, **kwargs):
    ...

Click

Using signal 'click_received' for manager send email. For example::

from django_ses.signals import click_received
from django.dispatch import receiver


@receiver(click_received)
def click_handler(sender, mail_obj, click_obj, raw_message, *args, **kwargs):
    ...

Testing Signals

If you would like to test your signals, you can optionally disable AWS_SES_VERIFY_EVENT_SIGNATURES in settings. Examples for the JSON object AWS SNS sends can be found here: https://docs.aws.amazon.com/sns/latest/dg/sns-message-and-json-formats.html#http-subscription-confirmation-json

SES Event Monitoring with Configuration Sets

You can track your SES email sending at a granular level using SES Event Publishing_. To do this, you set up an SES Configuration Set and add event handlers to it to send your events on to a destination within AWS (SNS, Cloudwatch or Kinesis Firehose) for further processing and analysis.

To ensure that emails you send via django-ses will be tagged with your SES Configuration Set, set the AWS_SES_CONFIGURATION_SET setting in your settings.py to the name of the configuration set::

AWS_SES_CONFIGURATION_SET = 'my-configuration-set-name'

This will add the X-SES-CONFIGURATION-SET header to all your outgoing e-mails.

If you want to set the SES Configuration Set on a per message basis, set AWS_SES_CONFIGURATION_SET to a callable. The callable should conform to the following prototype::

def ses_configuration_set(message, dkim_domain=None, dkim_key=None,
                            dkim_selector=None, dkim_headers=()):
    configuration_set = 'my-default-set'
    # use message and dkim_* to modify configuration_set
    return configuration_set

AWS_SES_CONFIGURATION_SET = ses_configuration_set

where

• message is a django.core.mail.EmailMessage object (or subclass)
• dkim_domain is a string containing the DKIM domain for this message
• dkim_key is a string containing the DKIM private key for this message
• dkim_selector is a string containing the DKIM selector (see DKIM, below for explanation)
• dkim_headers is a list of strings containing the names of the headers to be DKIM signed (see DKIM, below for explanation)

.. _SES Event Publishing: https://docs.aws.amazon.com/ses/latest/DeveloperGuide/monitor-using-event-publishing.html

DKIM

Using DomainKeys_ is entirely optional, however it is recommended by Amazon for authenticating your email address and improving delivery success rate. See http://docs.amazonwebservices.com/ses/latest/DeveloperGuide/DKIM.html. Besides authentication, you might also want to consider using DKIM in order to remove the via email-bounces.amazonses.com message shown to gmail users - see http://support.google.com/mail/bin/answer.py?hl=en&answer=1311182.

Currently there are two methods to use DKIM with Django-SES: traditional Manual Signing and the more recently introduced Amazon Easy DKIM feature.

Easy DKIM

Easy DKIM is a feature of Amazon SES that automatically signs every message that you send from a verified email address or domain with a DKIM signature.

You can enable Easy DKIM in the AWS Management Console for SES. There you can also add the required domain verification and DKIM records to Route 53 (or copy them to your alternate DNS).

Once enabled and verified Easy DKIM needs no additional dependencies or DKIM specific settings to work with Django-SES.

For more information and a setup guide see: http://docs.aws.amazon.com/ses/latest/DeveloperGuide/easy-dkim.html

Manual DKIM Signing

To enable Manual DKIM Signing you should install the pydkim_ package and specify values for the DKIM_PRIVATE_KEY and DKIM_DOMAIN settings. You can generate a private key with a command such as openssl genrsa 512 and get the public key portion with openssl rsa -pubout <private.key. The public key should be published to ses._domainkey.example.com if your domain is example.com. You can use a different name instead of ses by changing the DKIM_SELECTOR setting.

The SES relay will modify email headers such as Date and Message-Id so by default only the From, To, Cc, Subject headers are signed, not the full set of headers. This is sufficient for most DKIM validators but can be overridden with the DKIM_HEADERS setting.

Example settings.py::

DKIM_DOMAIN = 'example.com' DKIM_PRIVATE_KEY = ''' -----BEGIN RSA PRIVATE KEY----- xxxxxxxxxxx -----END RSA PRIVATE KEY----- '''

Example DNS record published to Route53 with boto:

route53 add_record ZONEID ses._domainkey.example.com. TXT '"v=DKIM1; p=xxx"' 86400

.. _DomainKeys: http://dkim.org/

Identity Owners

With Identity owners, you can use validated SES-domains across multiple accounts: https://docs.aws.amazon.com/ses/latest/DeveloperGuide/sending-authorization-delegate-sender-tasks-email.html

This is useful if you got multiple environments in different accounts and still want to send mails via the same domain.

You can configure the following environment variables to use them as described in boto3-docs_::

AWS_SES_SOURCE_ARN=arn:aws:ses:eu-central-1:012345678910:identity/example.com
AWS_SES_FROM_ARN=arn:aws:ses:eu-central-1:012345678910:identity/example.com
AWS_SES_RETURN_PATH_ARN=arn:aws:ses:eu-central-1:012345678910:identity/example.com

.. _boto3-docs: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ses.html#SES.Client.send_raw_email

SES Sending Stats

Django SES comes with two ways of viewing sending statistics.

The first one is a simple read-only report on your 24 hour sending quota, verified email addresses and bi-weekly sending statistics.

To enable the dashboard to retrieve data from AWS, you need to update the IAM policy by adding the following actions::

{
    "Effect": "Allow",
    "Action": [
        "ses:ListVerifiedEmailAddresses",
        "ses:GetSendStatistics"
    ],
    "Resource": "*"
}

To generate and view SES sending statistics reports, include, update INSTALLED_APPS::

INSTALLED_APPS = (
    # ...
    'django.contrib.admin',
    'django_ses',
    # ...
)

... and urls.py::

urlpatterns += (url(r'^admin/django-ses/', include('django_ses.urls')),)

Optional enhancements to stats:

Override the dashboard view

You can override the Dashboard view, for example, to add more context data::

class CustomSESDashboardView(DashboardView):
    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context.update(**admin.site.each_context(self.request))
        return context

Then update your urls::

urlpatterns += path('admin/django-ses/', CustomSESDashboardView.as_view(), name='django_ses_stats'),

Link the dashboard from the admin

You can use adminplus for this (https://github.com/jsocol/django-adminplus)::

from django_ses.views import DashboardView
admin.site.register_view('django-ses', DashboardView.as_view(), 'Django SES Stats')

Store daily stats

If you need to keep send statistics around for longer than two weeks, django-ses also comes with a model that lets you store these. To use this feature you'll need to run::

python manage.py migrate

To collect the statistics, run the get_ses_statistics management command (refer to next section for details). After running this command the statistics will be viewable via /admin/django_ses/.

Django SES Management Commands

To use these you must include django_ses in your INSTALLED_APPS.

Managing Verified Email Addresses

Manage verified email addresses through the management command.

python manage.py ses_email_address --list

Add emails to the verified email list through:

python manage.py ses_email_address --add [e-mail]

Remove emails from the verified email list through:

python manage.py ses_email_address --delete [e-mail]

You can toggle the console output through setting the verbosity level.

python manage.py ses_email_address --list --verbosity 0

Collecting Sending Statistics

To collect and store SES sending statistics in the database, run:

python manage.py get_ses_statistics

Sending statistics are aggregated daily (UTC time). Stats for the latest day (when you run the command) may be inaccurate if run before end of day (UTC). If you want to keep your statistics up to date, setup cron to run this command a short time after midnight (UTC) daily.

Managing the blacklist

To manage the blacklist (add, remote, list), run:

python manage.py blacklist

Django Builtin-in Error Emails

If you'd like Django's Builtin Email Error Reporting_ to function properly (actually send working emails), you'll have to explicitly set the SERVER_EMAIL setting to one of your SES-verified addresses. Otherwise, your error emails will all fail and you'll be blissfully unaware of a problem.

Note: You will need to sign up for SES_ and verify any emails you're going to use in the from_email argument to django.core.mail.send_email(). Boto_ has a verify_email_address() method: https://github.com/boto/boto/blob/master/boto/ses/connection.py

.. _Boto: http://boto.cloudhackers.com/ .. _Builtin Email Error Reporting: https://docs.djangoproject.com/en/dev/howto/error-reporting/

Receiving emails

In order to setup your AWS SES account to receive emails you should follow the official SES Email receiving setup_ instructions. Here is a quick sum up:

1. Add an MX entry to your domain, pointing to inbound-smtp.us-east-1.amazonaws.com (or the region of your choice).
2. Create a new rule set in the Email receiving section.
3. Create a new rule in the newly created rule set.
4. Create a new recipient condition for that rule. In the actions step pick either Publish to Amazon SNS topic or Deliver to S3 bucket. Also create a new SNS topic. That should point to https://your-django-ses-app/ses/event-webhook/. Don't enable raw message delivery.

The difference between SNS and S3 in the 4th step is that SNS will deliver the entire email message (headers, subject, content and attachments) directly to your endpoint; S3, on the other hand, will store the email message in a S3 bucket and will deliver to your endpoint the bucket name and the file path, then your webhook handler should fetch that file from the S3 bucket in order to get the actual email object.

The SNS way is easier to setup, but it only supports messages up to 150kb, including headers.

Depending which method you selected in step 4 you should inherit either from the SnsHandler or the S3Handler class and create your own handler. You should then set the path of your handler in the AWS_SES_INBOUND_HANDLER setting (eg. AWS_SES_INBOUND_HANDLER='my_app.service.MyReceiver').

Example

.. code-block:: python

from django_ses.inbound import SnsHandler

class MyReceiver(SnsHandler): def process(self): print(self.email.get("subject")) print(self.email.get("plain_text"))

The email parsing logic in Django-SES has been kept simple in order to avoid extra dependencies. If you wish to parse emails yourself or with a third party package, you can reimplement the parse_email method:

.. code-block:: python

import mailparser from django_ses.inbound import

class MyReceiver(SnsHandler): def parse_email(self, content): return mailparser.parse_from_bytes(content)

   def process(self):
       print(self.email.subject)
       print(self.email.body)

.. _SES Email receiving setup: https://docs.aws.amazon.com/ses/latest/dg/receiving-email-setting-up.html

Requirements

django-ses requires supported version of Django or Python.

Full List of Settings

AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY Required. Your API keys for Amazon SES.

AWS_SES_ACCESS_KEY_ID, AWS_SES_SECRET_ACCESS_KEY Required. Alternative API keys for Amazon SES. This is useful in situations where you would like to use separate access keys for different AWS services.

AWS_SES_SESSION_TOKEN, AWS_SES_SECRET_ACCESS_KEY Optional. Use AWS_SES_SESSION_TOKEN to provide session token when temporary credentials are used. Details: https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_use-resources.html

AWS_SES_REGION_NAME, AWS_SES_REGION_ENDPOINT Optionally specify what region your SES service is using. Note that this is required if your SES service is not using us-east-1, as omitting these settings implies this region. Details: http://readthedocs.org/docs/boto/en/latest/ref/ses.html#boto.ses.regions http://docs.aws.amazon.com/general/latest/gr/rande.html

USE_SES_V2 Optional. If you want to use client v2, you'll need to add USE_SES_V2=True. Some settings will need this flag enabled. See https://boto3.amazonaws.com/v1/documentation/api/1.26.31/reference/services/sesv2.html#id87

AWS_SES_FROM_EMAIL Optional. The email address to be used as the "From" address for the email. The address that you specify has to be verified. For more information please refer to https://boto3.amazonaws.com/v1/documentation/api/1.26.31/reference/services/sesv2.html#SESV2.Client.send_email

AWS_SES_RETURN_PATH Optional. Use AWS_SES_RETURN_PATH to receive complaint notifications You must use the v2 client by setting USE_SES_V2=True for this setting to work, otherwise it is ignored. https://docs.aws.amazon.com/ses/latest/APIReference-V2/API_SendEmail.html#API_SendEmail_RequestSyntax

AWS_SES_CONFIGURATION_SET Optional. Use this to mark your e-mails as from being from a particular SES Configuration Set. Set this to a string if you want all messages to have the same configuration set. Set this to a callable if you want to set configuration set on a per message basis.

TIME_ZONE Default Django setting, optionally set this. Details: https://docs.djangoproject.com/en/dev/ref/settings/#time-zone

DKIM_DOMAIN, DKIM_PRIVATE_KEY Optional. If these settings are defined and the pydkim_ module is installed then email messages will be signed with the specified key. You will also need to publish your public key on DNS; the selector is set to ses by default. See http://dkim.org/ for further detail.

AWS_SES_SOURCE_ARN Instruct Amazon SES to use a domain from another account. For more information please refer to https://docs.aws.amazon.com/ses/latest/DeveloperGuide/sending-authorization-delegate-sender-tasks-email.html

AWS_SES_FROM_ARN Instruct Amazon SES to use a domain from another account. For more information please refer to https://docs.aws.amazon.com/ses/latest/DeveloperGuide/sending-authorization-delegate-sender-tasks-email.html

AWS_SES_RETURN_PATH_ARN Instruct Amazon SES to use a domain from another account. For more information please refer to https://docs.aws.amazon.com/ses/latest/DeveloperGuide/sending-authorization-delegate-sender-tasks-email.html

AWS_SES_VERIFY_EVENT_SIGNATURES, AWS_SES_VERIFY_BOUNCE_SIGNATURES Optional. Default is True. Verify the contents of the message by matching the signature you recreated from the message contents with the signature that Amazon SNS sent with the message. See https://docs.aws.amazon.com/sns/latest/dg/sns-verify-signature-of-message.html for further detail.

EVENT_CERT_DOMAINS, BOUNCE_CERT_DOMAINS Optional. Default is 'amazonaws.com' and 'amazon.com'.

AWS_SES_ADD_BOUNCE_TO_BLACKLIST If set to True (default False) email addresses that triggered an irrecoverable bounce (status in the 5xx range) will be added to the blacklist. Note that emails will be stored in lowercase.

AWS_SES_ADD_COMPLAINT_TO_BLACKLIST If set to True (default False) email addresses that triggered a complaint will be added to the blacklist. Note that emails will be stored in lowercase.

AWS_SES_USE_BLACKLIST If set to True (default False), calls to the send_mail() method will cause the recipients to be filtered using the blacklist. Any recipient that exists in the blacklist will be removed from the email.

AWS_SES_INBOUND_ACCESS_KEY_ID If you're inheriting from the S3Handler, you should set this so that Django-SES can fetch the actual email message. Make sure to attach the right permission policies to the IAM.

AWS_SES_INBOUND_SECRET_ACCESS_KEY Check AWS_SES_INBOUND_ACCESS_KEY_ID.

AWS_SES_INBOUND_HANDLER If you want to receive emails with Django-SES, set this to the path where your handler is (eg my_app.service.MyReceiver).

.. _pydkim: http://hewgill.com/pydkim/

Proxy

If you are using a proxy, please enable it via the env variables.

If your proxy server does not have a password try the following:

.. code-block:: python

import os os.environ["HTTP_PROXY"] = "http://proxy.com:port" os.environ["HTTPS_PROXY"] = "https://proxy.com:port"

if your proxy server has a password try the following:

.. code-block:: python

import os os.environ["HTTP_PROXY"] = "http://user:[e-mail]:port" os.environ["HTTPS_PROXY"] = "https://user:[e-mail]:port"

Source: https://stackoverflow.com/a/33501223/1331671

Contributing

If you'd like to fix a bug, add a feature, etc

#. Start by opening an issue. Be explicit so that project collaborators can understand and reproduce the issue, or decide whether the feature falls within the project's goals. Code examples can be useful, too.

#. File a pull request. You may write a prototype or suggested fix.

#. Check your code for errors, complaints. Use check.py <https://github.com/jbalogh/check>_

#. Write and run tests. Write your own test showing the issue has been resolved, or the feature works as intended.

Git hooks (via pre-commit)

We use pre-push hooks to ensure that only linted code reaches our remote repository and pipelines aren't triggered in vain.

To enable the configured pre-push hooks, you need to install pre-commit and run once::

pre-commit install -t pre-push -t pre-commit --install-hooks

This will permanently install the git hooks for both, frontend and backend, in your local .git/hooks folder. The hooks are configured in the .pre-commit-config.yaml.

You can check whether hooks work as intended using the run command::

pre-commit run [hook-id] [options]

Example: run single hook::

pre-commit run ruff --all-files --hook-stage push

Example: run all hooks of pre-push stage::

pre-commit run --all-files --hook-stage push

Running Tests

To run the tests::

python runtests.py

If you want to debug the tests, just add this file as a python script to your IDE run configuration.

Creating a Release

To create a release:

• Run poetry version {patch|minor|major} as explained in the docs <https://python-poetry.org/docs/cli/#version>_. This will update the version in pyproject.toml.
• Commit that change and use git to tag that commit with a version that matches the pattern v*.*.*.
• Push the tag and the commit (note some IDEs don't push tags by default).

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