> ## 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.

# IONOS

> Learn how to verify your domain on SendKit using IONOS DNS.

## Prerequisites

Before you begin, make sure you have:

1. A [SendKit account](https://app.sendkit.dev/register) with a domain added
2. Access to your [IONOS account](https://my.ionos.com)
3. Your domain's DNS records from the SendKit domain detail page

## Add DNS records

Log in to IONOS, go to **Domains & SSL**, click your domain, then select **DNS**. Click **Add Record** for each of the following.

### 1. DKIM record

<Steps>
  <Step title="Add a new record">
    Click **Add Record** and select **TXT** as the record type.
  </Step>

  <Step title="Set the hostname">
    In the **Hostname** field, enter `sendkit._domainkey`.
  </Step>

  <Step title="Set the value">
    In the **Value** field, paste the full DKIM value from your SendKit domain detail page.
  </Step>

  <Step title="Save">
    Click **Save**.
  </Step>
</Steps>

| IONOS field | SendKit value                |
| ----------- | ---------------------------- |
| Type        | `TXT`                        |
| Hostname    | `sendkit._domainkey`         |
| Value       | Your DKIM value from SendKit |

### 2. SPF record

<Steps>
  <Step title="Add a new record">
    Click **Add Record** and select **TXT** as the record type.
  </Step>

  <Step title="Set the hostname">
    In the **Hostname** field, enter `send`.
  </Step>

  <Step title="Set the value">
    In the **Value** field, paste the SPF value from your SendKit domain detail page.
  </Step>

  <Step title="Save">
    Click **Save**.
  </Step>
</Steps>

| IONOS field | SendKit value               |
| ----------- | --------------------------- |
| Type        | `TXT`                       |
| Hostname    | `send`                      |
| Value       | Your SPF value from SendKit |

### 3. MX record

<Steps>
  <Step title="Add a new record">
    Click **Add Record** and select **MX** as the record type.
  </Step>

  <Step title="Set the hostname">
    In the **Hostname** field, enter `send`.
  </Step>

  <Step title="Set the mail server">
    In the **Points to** field, paste the MX value from your SendKit domain detail page.
  </Step>

  <Step title="Set priority">
    Set **Priority** to `10`.
  </Step>

  <Step title="Save">
    Click **Save**.
  </Step>
</Steps>

| IONOS field | SendKit value              |
| ----------- | -------------------------- |
| Type        | `MX`                       |
| Hostname    | `send`                     |
| Points to   | Your MX value from SendKit |
| Priority    | `10`                       |

### 4. DMARC record (optional)

<Steps>
  <Step title="Add a new record">
    Click **Add Record** and select **TXT** as the record type.
  </Step>

  <Step title="Set the hostname">
    In the **Hostname** field, enter `_dmarc`.
  </Step>

  <Step title="Set the value">
    In the **Value** field, enter `v=DMARC1; p=none;`.
  </Step>

  <Step title="Save">
    Click **Save**.
  </Step>
</Steps>

## Verify your domain

Go back to your [SendKit domain detail page](https://app.sendkit.dev) and click **Refresh**. IONOS DNS changes typically propagate within a few minutes.

<Info>
  If verification doesn't succeed immediately, wait a few minutes and try again. SendKit also checks automatically in the background.
</Info>

## Troubleshooting

<AccordionGroup>
  <Accordion title="Cannot add TXT records">
    Make sure you're in the **DNS** section, not the **Mail** section. IONOS has separate sections for mail configuration and raw DNS records.
  </Accordion>

  <Accordion title="Existing MX records on the root domain">
    The SendKit MX record goes on the `send` subdomain, not your root domain. It won't conflict with IONOS email or any existing MX records on your main domain.
  </Accordion>
</AccordionGroup>