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Our SMTP service is still under development but is intended to be stable as currently deployed. Please contact [adam@loops.so](mailto:adam@loops.so) with any feedback during this period.

You can send transactional emails over SMTP, meaning you can use Loops to power emails in platforms like Supabase and development tools and frameworks like Laravel, Rails, Django and Nodemailer.

The Loops way of sending emails over SMTP is a bit different from other services.

First, you create transactional email templates in [the Loops editor](/creating-emails/editor) for the emails you want to send.

Our rich editor helps you create beautiful, client-compatible *and* easy-to-update emails rather than hand-coding them.


Use these SMTP settings in your application:

| Field       | Value                                                                                      |
| ----------- | ------------------------------------------------------------------------------------------ |
| Host        | `smtp.loops.so`                                                                            |
| Port number | `587`                                                                                      |
| Username    | `loops`                                                                                    |
| Password    | An API key copied from your [API settings](http://app.loops.so/settings?page=api) in Loops |

Then, when it comes to sending emails, instead of the content of an email, you send an API-like request body like this:

```json
{
  "transactionalId": "clomzp89u035xl50px7wrl0ri",
  "email": "dan@loops.so",
  "dataVariables": {
    "confirmationUrl": "https://myapp.com/confirm/12345/"
  }
}
```

This content **needs to be converted to a string** and then sent as the email body.

Loops takes the provided data and compiles an email using the template you specify in the `transactionalId` value plus the provided `dataVariables`, then sends the email to `email`.


Every email sent using Loops' SMTP service requires a transactional email to be set up in your Loops account. Note the `transactionalId` value in the email payload.

Learn how to set up SMTP in platforms and developer tools.

<Card title="Novu" icon={  } href="/integrations/novu"

Send Novu notification emails with Loops.


<Card title="Supabase" icon={  } href="/integrations/supabase"

Send Supabase authentication emails with Loops.


Send transactional emails from your Laravel project.

<Card title="Ruby on Rails" icon={} href="/smtp/rails"> Send transactional emails from your Rails project.

Overview

Send transactional emails from your Django project using Loops’ SMTP service.

As Loops’ SMTP service requires sending an API-like email body rather than a full email, it’s not recommended to use Loops as the default SMTP service for your app in your settings file.

 for each email request that you want to send through Loops.

Sending email from Django with Loops’ SMTP service is easy but there’s one gotcha: the email body needs to be an 

This may seem strange at first but it allows you to use Loops’ WYSIWYG editor to craft your emails and keep email templating outside of your code repo.

 for sending this email as typically only some emails in a project will be sent through Loops.

Add these settings to your project (e.g. in an 

Every email sent from Django over Loops SMTP requires a transactional email to be set up in your Loops account. Note the 

from django.core.mail import send_mail, get_connection
import json
import os

with get_connection(
    host=os.environ['LOOPS_SMTP_HOST'],
    port=os.environ['LOOPS_SMTP_PORT'],
    username=os.environ['LOOPS_SMTP_USER'],
    password=os.environ['LOOPS_SMTP_PASSWORD'],
    use_tls=True # Has to be True
) as connection:

    email = 'dan@loops.so'

    # This payload can be copied from a transactional email's 
    #  Publish page in Loops
    payload = {
        "transactionalId": "clomzp89u635xl30px7wrl0ri",
        "email": email,
        "dataVariables": {
            "buttonUrl": "https://myapp.com/login/",
            "userName": "Bob"
        }
    }

    send_mail(
        "Subject here", # Overwritten by Loops template
        json.dumps(payload), # Stringify the payload
        "from@example.com", # Overwritten by Loops template
        [email],
        fail_silently=False,
        connection=connection
    )