> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/resend/resend-go/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Domain

> Update domain configuration settings

## Methods

### Update

```go theme={null}
func (s *DomainsSvcImpl) Update(domainId string, params *UpdateDomainRequest) (Domain, error)
```

Updates an existing domain's configuration.

### UpdateWithContext

```go theme={null}
func (s *DomainsSvcImpl) UpdateWithContext(ctx context.Context, domainId string, params *UpdateDomainRequest) (Domain, error)
```

Updates an existing domain's configuration with context support.

## Parameters

<ParamField path="domainId" type="string" required>
  The unique identifier of the domain to update
</ParamField>

### UpdateDomainRequest

<ParamField body="open_tracking" type="bool">
  Enable or disable open tracking for emails sent from this domain
</ParamField>

<ParamField body="click_tracking" type="bool">
  Enable or disable click tracking for emails sent from this domain
</ParamField>

<ParamField body="tls" type="TlsOption">
  TLS configuration for the domain. See [TLS Options](#tls-options) below.
</ParamField>

### TLS Options

The `TlsOption` type accepts the following constants:

<ParamField body="tls" type="string">
  * `resend.Enforced` - Require TLS for all email delivery
  * `resend.Opportunistic` - Use TLS when available, fall back to unencrypted if not
</ParamField>

```go theme={null}
const (
    Enforced      TlsOption = "enforced"
    Opportunistic TlsOption = "opportunistic"
)
```

## Response

### Domain

<ResponseField name="id" type="string">
  The unique identifier for the domain
</ResponseField>

<ResponseField name="object" type="string">
  Object type ("domain")
</ResponseField>

<ResponseField name="name" type="string">
  The domain name
</ResponseField>

<ResponseField name="created_at" type="string">
  Timestamp when the domain was created
</ResponseField>

<ResponseField name="status" type="string">
  The verification status of the domain
</ResponseField>

<ResponseField name="region" type="string">
  The region where emails are sent from
</ResponseField>

<ResponseField name="records" type="[]Record">
  DNS records for domain verification
</ResponseField>

## Examples

### Enable Tracking

```go theme={null}
package main

import (
    "fmt"
    "github.com/resend/resend-go/v2"
)

func main() {
    client := resend.NewClient("re_123456789")

    params := &resend.UpdateDomainRequest{
        OpenTracking:  true,
        ClickTracking: true,
    }

    domain, err := client.Domains.Update("d1e9e6f7-6a1c-4b3d-8c9e-1f2e3d4c5b6a", params)
    if err != nil {
        panic(err)
    }

    fmt.Println("Domain updated:", domain.Name)
}
```

### Configure TLS

```go theme={null}
params := &resend.UpdateDomainRequest{
    Tls: resend.Enforced,
}

domain, err := client.Domains.Update("d1e9e6f7-6a1c-4b3d-8c9e-1f2e3d4c5b6a", params)
if err != nil {
    panic(err)
}
```

### Update Multiple Settings

```go theme={null}
ctx := context.Background()

params := &resend.UpdateDomainRequest{
    OpenTracking:  true,
    ClickTracking: false,
    Tls:           resend.Opportunistic,
}

domain, err := client.Domains.UpdateWithContext(ctx, "d1e9e6f7-6a1c-4b3d-8c9e-1f2e3d4c5b6a", params)
if err != nil {
    panic(err)
}
```