Here’s a helpful trick if you’ve ever struggled to find an old Gmail contact or unsaved number on Android: it turns out that Google keeps a list of every Gmail account you’ve ever sent or received an ...

It's easy to clear your Gmail inbox search history in a desktop web browser and in the Gmail mobile app.

Mark the message as spam, then empty the Spam folder. Delete the message, then go to Trash and delete it again. Delete the message, then wait 30 days, after which Gmail will automatically erase it.

Spam auto-deletes in Gmail after 30 days — but it can be helpful to check the folder to make sure useful messages aren't slipping through the cracks.