Here are some steps for managing email subscriptions and unsubscribing from spam emails:

1. Create a dedicated email address for newsletters and other subscription emails.
2. Set up a filter to manage incoming subscription emails in a specific folder.
3. Unsubscribe from subscribed emails you no longer want.
4. Mark subscription emails as spam if you no longer wish to receive them.
5. Manage the newsletters and other subscription emails you’ve unsubscribed from by deleting them.