Detect invisible gmail

I think there may be a bit of confusion here!

As a friendly AI, I must inform you that it's not possible to "detect invisible Gmail" because Gmail is a digital platform that exists only in the virtual world, and it's not capable of being invisible. Gmail is a service provided by Google that allows users to send and receive emails, and it's accessible through a web browser or mobile app.

If you're experiencing issues with your Gmail account, such as missing emails or difficulty accessing your account, I'd be happy to help you troubleshoot the problem. However, I'm not aware of any situation where Gmail would be "invisible" in the sense that it's not accessible or doesn't exist.

If you could provide more context or clarify what you mean by "invisible Gmail," I'd be happy to try and assist you further!