> For the complete documentation index, see [llms.txt](https://docs.mailtrap.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mailtrap.io/email-api-smtp/overview.md).

# Overview

Mailtrap Email API/SMTP lets you send transactional and bulk emails. Integrate with the Email Sending API or SMTP.

### Choose a sending stream

Choose a stream based on the email type:

* **Transactional Stream** sends automated, non-promotional emails. Examples include password resets and order confirmations.
* [**Bulk Stream**](/email-api-smtp/setup/bulk-stream.md) sends marketing campaigns to many recipients. Examples include newsletters and promotions.

### Choose an integration method

Use the method that fits your application:

* [**Email Sending API**](/email-api-smtp/setup/api-integration.md) sends emails through authenticated HTTP requests and supported SDKs.
* [**SMTP**](/email-api-smtp/setup/smtp-integration.md) works with existing email clients and libraries.

Both methods support Mailtrap Email Logs and analytics.

### Get started

{% columns %}
{% column %}
**Set up sending**

* [Set up a sending domain](/email-api-smtp/setup/sending-domain.md)
* [Integrate with the Email Sending API](/email-api-smtp/setup/api-integration.md)
* [Integrate with SMTP](/email-api-smtp/setup/smtp-integration.md)
* [Warm up an IP address](/email-api-smtp/deliverability/ip-warmup.md)
  {% endcolumn %}

{% column %}
**Manage email sending**

* [Create email templates](/email-api-smtp/email-templates.md)
* [Review analytics and reports](/email-api-smtp/analytics.md)
* [Configure deliverability features](/email-api-smtp/deliverability.md)
* [Read the deliverability guide](https://mailtrap.io/email-deliverability-guide/)
  {% endcolumn %}
  {% endcolumns %}

### Support and resources

<a href="https://docs.mailtrap.io/developers" class="button primary" data-icon="books">API Reference</a> <a href="/pages/9lQ5YuKcxQlKDNpnu1l1" class="button primary" data-icon="messages-question">FAQs</a> <a href="/pages/aVNz9W4lS1GqR4PQjB5K" class="button primary" data-icon="screwdriver-wrench">Troubleshooting</a> <a href="mailto:support@mailtrap.io" class="button primary" data-icon="envelope">Contact Support</a>

### Next steps

{% stepper %}
{% step %}
[Setup & Configuration](/email-api-smtp/setup.md)

*Set up your sending domain*
{% endstep %}

{% step %}
[API Integration](/email-api-smtp/setup/api-integration.md)

*Integrate with the Email Sending API*
{% endstep %}

{% step %}
[Email Templates](/email-api-smtp/email-templates.md)

*Create reusable email templates*
{% endstep %}

{% step %}
[Analytics & Reports](/email-api-smtp/analytics.md)

*Review your email metrics*
{% endstep %}
{% endstepper %}


---

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