The spam filter on Gmail runs its own, and it isn’t much you can do about it. But, in case your Gmail spam filter is not working for you, so there are limited options that you can follow to fix this problem.
- Your Account might be hacked
- Don’t mark spam emails as not spam
- Create a filter for emails using “Unsubscribe”
- Delete overlapping filters
- Edit Gmail spam filter
- Import a filter to your Gmail account
- Check if the “Skip the Inbox” filter is working properly.
- Check Broad incoming message filter
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