If you read the Gmail’s documentation, you can find the following information:
If someone accidentally adds dots to your address when emailing you, you’ll still get that email. For example, if your email is [email protected], you own all dotted versions of your address:
While testing an application, most of the times, you are required to use multiple accounts. That’s why I wrote the following script, iterating the dots in your original gmail address! The tested application will make difference between these addresses in most of the times.
Enjoy: