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

# Email Features

> Configure an email domain, send messages through the API, and monitor delivery performance.

Complete domain setup first, then integrate sending and review performance data regularly.

<CardGroup cols={2}>
  <Card icon="file-lines" title="Domain Configuration" href="/en/documentation/integrations/channels/email/email-features/domain-configuration">
    Authenticate and activate your sending domain.
  </Card>

  <Card icon="file-lines" title="Sending Emails via API" href="/en/documentation/integrations/channels/email/email-features/send-emails-via-api">
    Integrate transactional or marketing email sending.
  </Card>

  <Card icon="file-lines" title="Monitoring and Optimization" href="/en/documentation/integrations/channels/email/email-features/monitoring-and-optimization">
    Track delivery results and improve sending performance.
  </Card>
</CardGroup>


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