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

# Managing Domains

> List, add, verify, and delete sending domains with the Lettr Rust SDK to automate DNS verification and multi-tenant onboarding.

The `client.domains` service manages your sending domains — useful for multi-tenant apps onboarding customer domains, or for automating DNS verification.

For the concepts behind domain setup (SPF, DKIM, DMARC), see [Sending Domains](/learn/domains/sending-domains).

```rust theme={null}
use lettr::Lettr;

let client = Lettr::new("your-api-key");
```

## List Domains

```rust theme={null}
let domains = client.domains.list().await?;
for domain in &domains {
    println!("{}: {} (can send: {})", domain.domain, domain.status, domain.can_send);
}
```

<Card title="API Reference" icon="book" href="/api-reference/domains/list-domains">
  GET /domains
</Card>

## Create a Domain

```rust theme={null}
let result = client.domains.create("example.com").await?;
println!("DKIM selector: {:?}", result.dkim);
```

<Card title="API Reference" icon="book" href="/api-reference/domains/create-domain">
  POST /domains
</Card>

## Get Domain Details

```rust theme={null}
let detail = client.domains.get("example.com").await?;
println!("DKIM: {:?}, DMARC: {:?}, SPF: {:?}",
    detail.dkim_status, detail.dmarc_status, detail.spf_status);
```

<Card title="API Reference" icon="book" href="/api-reference/domains/get-domain">
  GET /domains/{domain}
</Card>

## Verify Domain DNS

After publishing the records, trigger a verification check:

```rust theme={null}
let verification = client.domains.verify("example.com").await?;
println!("DKIM: {}, CNAME: {}, DMARC: {}, SPF: {}",
    verification.dkim_status, verification.cname_status,
    verification.dmarc_status, verification.spf_status);
```

<Tip>
  DNS changes take time to propagate. If verification fails right after publishing, wait a few minutes and retry. See [Domain Verification troubleshooting](/knowledge-base/troubleshooting/domain-verification).
</Tip>

<Card title="API Reference" icon="book" href="/api-reference/domains/verify-domain">
  POST /domains/{domain}/verify
</Card>

## Delete a Domain

```rust theme={null}
client.domains.delete("example.com").await?;
```

<Warning>
  Deleting a domain stops all sending from it immediately. Emails from a deleted domain fail with a validation error.
</Warning>

<Card title="API Reference" icon="book" href="/api-reference/domains/delete-domain">
  DELETE /domains/{domain}
</Card>

## What's Next

<CardGroup cols={2}>
  <Card title="Sending Domains" icon="globe" href="/learn/domains/sending-domains">
    DNS setup: SPF, DKIM, DMARC
  </Card>

  <Card title="Webhooks" icon="bell" href="/quickstart/rust/webhooks">
    Receive delivery and engagement events
  </Card>
</CardGroup>