How can we Filter unwanted emails?

If you want to stop unwanted emails you can do so from your cPanel. 

1. Login into your cPanel.
2. Go to "Email" section.

3. Then click on "Global Email Filters"

4. Click on "Create a new filter". 

5. Set a "Filter Name" (i.e block Some fancy title)

6. If you filter those emails with their subject lines. Then Go to "Rules" and select "Subject" and "contains". Write Some title in the box underneath it.

For example, we want to discard all emails from @gmail.com. So I set this name here.

8. Select "Discard Message" in "Action" tab. Click on "Create".

Hope this will help.