ar2pi / aws-email-forwarder

AWS Lambda function to forward emails from Route 53 domains through SES with S3

aws-email-forwarder

Simple lambda function to forward emails from Route 53 domains to another recipient, which can be your personal email address.

Follow instructions as described here: https://aws.amazon.com/blogs/messaging-and-targeting/forward-incoming-email-to-an-external-destination/

Then use lambda_function.py for the lambda function code and email-forwarder-policy.json for the IAM policy.

Differences with this function being:

• adds sender, receiver and message body into the forwarded email
• deletes message s3 object once it's been sent
• uses python 3.9

Initialize project

Run:

make init && make deploy-tf-state-backend
# Edit terraform backend to include the newly created state backend
make migrate-tf-state
make deploy

---

Serverless

Deployment

In order to deploy the example, you need to run the following command:

$ serverless deploy

After running deploy, you should see output similar to:

Deploying aws-python-project to stage dev (us-east-1)

✔ Service deployed to stack aws-python-project-dev (112s)

functions:
  hello: aws-python-project-dev-hello (1.5 kB)

Invocation

After successful deployment, you can invoke the deployed function by using the following command:

serverless invoke --function hello

Which should result in response similar to the following:

{
    "statusCode": 200,
    "body": "{\"message\": \"Go Serverless v3.0! Your function executed successfully!\", \"input\": {}}"
}

Local development

You can invoke your function locally by using the following command:

serverless invoke local --function hello

Which should result in response similar to the following:

{
    "statusCode": 200,
    "body": "{\"message\": \"Go Serverless v3.0! Your function executed successfully!\", \"input\": {}}"
}

Bundling dependencies

In case you would like to include third-party dependencies, you will need to use a plugin called serverless-python-requirements. You can set it up by running the following command:

serverless plugin install -n serverless-python-requirements

Running the above will automatically add serverless-python-requirements to plugins section in your serverless.yml file and add it as a devDependency to package.json file. The package.json file will be automatically created if it doesn't exist beforehand. Now you will be able to add your dependencies to requirements.txt file (Pipfile and pyproject.toml is also supported but requires additional configuration) and they will be automatically injected to Lambda package during build process. For more details about the plugin's configuration, please refer to official documentation.