The sandbox environment is a copy of our application. Its purpose is to let customers test their integrations with our services. It doesn't send any real faxes. It's fail-safe to use as a testing environment.
The sandbox app can be accessed by URL https://app.sandbox.documo.com/ and API can be accessed by https://api.sandbox.documo.com/. Please note that you must reach out to support@documo.com to have an account created within the sandbox environment before you will be able to access it.
We have some sandbox-specific tools for you to help you integrate. They are accessible by https://app.sandbox.documo.com/sandbox.
Virtual Email Inbox
In this environment, you will see an Emails tab. This is your virtual email inbox. The sandbox app doesn't send any real emails. So in case if you want to test and see which emails will be sent by our application, you can open this page in a separate tab and it'll contain the last 50 emails associated with your account.
First, click Sandbox on the left navigation bar, and you will be brought to the Emails tab:
The inbox will be cleared if you close this tab or navigate to another page. Keep the page open while testing.

Sending Inbound Fax
The second tab contains a tool to send an inbound fax to your own number. It's the only way to simulate an inbound fax in the sandbox environment. It's quite simple: select the recipient number and click Send:
To test toast messages, click Toast Playground, select which toasts you want to view, then click Fire: