DirectAdmin allows you to block emails containing the Stop word.

**1**. Login to your DirectAdmin Account.

**2.** In the **E-mail Manager** section, click on the **SPAM Filters** icon or type **SPAM Filters** in the **navigation filter** box and the option will appear. Click on it.
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**3.** Under **Block By** from the **drop-down** menu, choose the **Stop Word** option.

**4.** In **Value**, type the Stop word you wish to block.
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**5.** Click the **Block** button.

You can add the Stop word as many times as you want. However, should you wish to avoid blocking partial matches with other words, use space before and after your Stop word as well.