> ## Documentation Index
> Fetch the complete documentation index at: https://resend.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Send emails with Elixir
> Learn how to send your first email using the Resend Elixir SDK.
This guides utilizes an [open source
library](https://github.com/elixir-saas/resend-elixir) contributed by a
community member. It's not developed, maintained, or supported by Resend
directly.
## Prerequisites
Before you start, you'll need:
* A Resend [API key](/create-an-api-key)
* A [verified domain](/add-a-domain)
## 1. Install
Install by adding `resend` to your list of dependencies in `mix.exs`:
```elixir mix.exs theme={"theme":{"light":"github-light","dark":"vesper"}}
def deps do
[
{:resend, "~> 0.4.0"}
]
end
```
## 2. Send email using HTML
The easiest way to send an email is by using the `html` parameter.
```elixir send.exs theme={"theme":{"light":"github-light","dark":"vesper"}}
client = Resend.client(api_key: System.get_env("RESEND_API_KEY"))
Resend.Emails.send(client, %{
from: "Acme ",
to: ["delivered@resend.dev"],
subject: "hello world",
html: "it works!"
})
```
## 3. Try it yourself
Basic email sending
Send emails with file attachments
Send emails using Resend hosted templates
Schedule emails for future delivery
Manage contacts and audiences
Create and manage sending domains
Receive and process inbound emails
Double opt-in subscription flow
Full Phoenix web framework application