Type your contact's name in the Gmail search bar. And press enter. Gmail will browse through your old conversations. And check if there's a match.

Emails might skip your inbox if they were accidentally archived, deleted, or marked as spam. Follow these steps to search all your emails, including those that aren't in your inbox: On your computer, open Gmail. Click the All Mail drop down, then select Mail & Spam & Trash.

On your computer, go to Gmail. Enter your Google Account email or phone number and password. If information is already filled in and you have to sign in to a different account, click Use another account. If you get a page that describes Gmail instead of the sign-in page, at the top right of the page, click Sign in.