Stop SPAM from reaching any mail boxes on my VPS servers?

I am trying to stop SPAM from reaching any mail boxes on my VPS servers via some word or phrase filters in WHM/cPanel

I have made a copy of /etc/cpanel_exim_system_filter to /etc/cpanel_exim_system_filter and will point to this new file.
But how do I modify it so check for specific words or phrases and auto delete the emails.

For example to check for and delete any emails that contain the following in body text?
"Hello & Good Day"
"SEO Services Company"
"Top Rankings In Google"
"IT Company from India"
"I have reached out to you"

I have found link below but can't see how to add word filters?

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Lucas BishopClick TrackerCommented:
You'll want to setup rules for "$message_body" since all of those examples you used will likely be at the very beginning of the message.

An example would look something like this:
    $message_body contains "Hello & Good Day"

    fail text "This message has been rejected because it\n\
             looks like you are spamming us."

Open in new window

Here is a more robust example.

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sabecsAuthor Commented:
Thanks Lucas, that is perfect.
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