Open Gmail in a web browser
Sign in to your account
In the search bar, use one of these filters as needed:
`before:YYYY/MM/DD` (older than a date)
`after:YYYY/MM/DD` (newer than a date)
`older_than:Xd` (older than X days, e.g., `older_than:365d`)
`newer_than:Xd` (newer than X days, e.g., `newer_than:30d`)
`from:someone@domain.com`
`to:someone@domain.com`
`subject:keyword`
`has:attachment`
`is:spam`
`is:trash`
`label:LabelName`
Click the search icon
Select all results:
Check the box at the top-left of the message list
Click “Select all conversations that match this search” (if it appears)
Click the trash icon (Delete)
To permanently delete:
Go to Trash
Select all messages (same selection steps)
Click “Delete forever” (or the “Delete forever” option)