> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sendkit.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Senders

> Learn how to create and manage sender identities for your emails.

## What is a sender?

A sender is a reusable identity that represents the "from" address on your emails. Instead of typing the full sender name, email, and reply-to address every time, you create a sender once and use it across campaigns, templates, and automations.

A sender is made up of:

| Field        | Example               | Description                                                     |
| ------------ | --------------------- | --------------------------------------------------------------- |
| **Name**     | `Paulo from SendKit`  | The display name recipients see in their inbox                  |
| **Username** | `paulo`               | The local part of the email address (before the @)              |
| **Domain**   | `sendkit.dev`         | A verified domain from your account                             |
| **Reply-to** | `support@sendkit.dev` | Optional. Where replies go if different from the sender address |

This produces a "from" address like: `Paulo from SendKit <paulo@sendkit.dev>`

## Creating a sender

You can create senders from the [SendKit dashboard](https://app.sendkit.dev/senders).

<Steps>
  <Step title="Verify a domain">
    You need at least one verified domain before creating a sender. Go to **Domains** and verify your domain with the required DNS records.
  </Step>

  <Step title="Create the sender">
    Go to **Senders** and click **Create Sender**. Fill in the name, username, and select your verified domain. Optionally set a reply-to address.
  </Step>

  <Step title="Use it everywhere">
    Your sender is now available in campaigns, templates, and automations.
  </Step>
</Steps>

## Reply-to address

The reply-to field is optional. When set, replies from recipients go to this address instead of the sender address. This is useful when:

* Your sender address is a no-reply address (e.g., `notifications@yourdomain.com`)
* You want replies to go to a shared inbox (e.g., `support@yourdomain.com`)
* You use a different address for customer communication

If left empty, replies go directly to the sender address.

## Using senders in the API

When sending emails via the [API](/api-reference/endpoint/send-email), you pass the full "from" address directly — you don't reference a sender by ID. Senders are primarily used in the dashboard for campaigns, templates, and automations.

<Note>
  The domain in the "from" address must be a verified domain in your account. Emails from unverified domains will be rejected.
</Note>

## Deleting a sender

A sender can only be deleted if it's not currently used by any campaign or template. If it's in use, you'll need to update those campaigns or templates to use a different sender first.

## FAQ

<AccordionGroup>
  <Accordion title="Can I have multiple senders on the same domain?">
    Yes. You can create as many senders as you need on the same domain — for example, `support@yourdomain.com`, `notifications@yourdomain.com`, and `marketing@yourdomain.com`.
  </Accordion>

  <Accordion title="Can two senders have the same username?">
    Not on the same domain. Each username must be unique per domain. However, you can use the same username on different domains (e.g., `hello@domain-a.com` and `hello@domain-b.com`).
  </Accordion>

  <Accordion title="What characters are allowed in the username?">
    Letters, numbers, dots, underscores, percent signs, plus signs, and hyphens. For example: `hello`, `no-reply`, `info.team`, `news+updates`.
  </Accordion>
</AccordionGroup>