Tap the icon (three horizontal lines) in the top-left corner. Select the Spam folder from the slide-out menu. Tap on any email from the contact to view its contents. How to View Your Complete List of Blocked Senders

You have a strict 30-day window to read, recover, or review these messages. On day 31, Google’s automated system purges them permanently, making them unrecoverable. How to View Blocked Email Messages

You can’t see a master list of every blocked email you’ve ever received—because those emails go to Spam and get deleted after 30 days. But for emails you’re missing right now: