Sandbox SMTP Integration

Copy SMTP credentials

1

Go to Email Testing → Sandboxes.

Navigation menu showing Email Testing section with Sandboxes option

2

Open the sandbox (named My Sandbox) created by default.

Sandboxes list displaying My Sandbox and other project sandboxes

3

Under the Integration tab, select SMTP and copy the credentials such as Host, Port, Username, and Password.

Integration tab showing SMTP credentials including Host, Port, Username, and Password

4

Paste them into your email-sending script, service, or MTA (any service that supports SMTP integration), and run it. The email will arrive in your sandbox in a few seconds.

Sandbox inbox displaying received test email message

Select your integration

Instead of copy-pasting the SMTP credentials, you can use the code samples already containing your credentials.

1

In the Integration tab of your sandbox, scroll down to Code Samples and select the programming language or framework you're working with.

Code Samples section showing various programming language options for integration

2

Copy the configuration and paste it into your email-sending script. Then, run it. The email will arrive in the sandbox in a few seconds.

Learn how exactly Mailtrap can help you streamline email testing processes from our case study with The Software House.