Step 1 - Go to your Gmail account settings page (by clicking the gear icon).
Step 2 - Select the Filters and Blocked Addresses tab. 2. Create a new filter by clicking the Create a new filter button.
Step 3 - In New window where you can enter the details for your filter. Enter the domain in the “From” field. If you want to prevent emails from the gmail.com domain from being delivered, simply enter @gmail.com.
Step 4 - Click on the Create filter with this search button. Select Delete from the list of options. Select Create filter.
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