---
title: Synthetic Email
description: Monitor round-trip email mailbox performance from around the world
breadcrumbs: Docs > Integrations > Synthetic Email
---

# Synthetic Email
Supported OS marketplaceIntegration version1.1.0   Synthetic Email IntroductionSynthetic Email and Response Times
## Overview{% #overview %}

This integration monitors email mailboxes and measures full send-receive synthetic messages deliveries. The integration uses three geographical source locations for the synthetic email deliveries: Virginia (US), Frankfurt (EU) and Sydney (AP). The check works by sending a test email from the address `probe@synth-rapdev.io` and then waiting for a auto-reply from your mailbox back to us. The integration measures the number of hops, round-trip-time, and the test results (pass/fail).

## Data Collected{% #data-collected %}

### Metrics{% #metrics %}

|  |
|  |
| **rapdev.syntheticemail.last\_sent**(gauge)  | Elapsed seconds since email probe last sent*Shown as second*        |
| **rapdev.syntheticemail.last\_seen**(gauge)  | Elapsed seconds since agent last checkin*Shown as second*           |
| **rapdev.syntheticemail.bounced**(gauge)     | Email message bounced flag                                          |
| **rapdev.syntheticemail.rtt**(gauge)         | Email message round-trip time in milliseconds*Shown as millisecond* |
| **rapdev.syntheticemail.hop.elapsed**(gauge) | SMTP relay hop elapsed time in seconds*Shown as second*             |
| **rapdev.syntheticemail.hops**(gauge)        | SMTP relay hop count for message round-trip delivery                |

### Service Checks{% #service-checks %}

**rapdev.syntheticemail.status**

Returns `CRITICAL` if the agent can't connect to Synthetic Email endpoint to collect metrics, `WARNING` if no metrics are provided, or `OK` otherwise.

*Statuses: ok, warning, critical*

## Support{% #support %}

For support or feature requests please contact RapDev.io through the following channels:

- Email: [support@rapdev.io](mailto:support@rapdev.io)
- Chat: [rapdev.io](https://www.rapdev.io/#Get-in-touch)
- Phone: 855-857-0222

This application is made available through the Marketplace and is supported by a Datadog Technology Partner. Click Here to purchase this application.