There are many ways to leverage machine learning for digital marketing. Here are a few ideas:

1. Personalization: Use machine learning to personalize website content, emails, and other marketing messages for individual customers.

2. Predictive analytics: Use machine learning to predict which customers are most likely to convert, and target your marketing efforts towards those individuals.

3. Customer segmentation: Use machine learning to identify patterns in customer data and segment your audience into groups with similar characteristics. This can help you tailor your marketing messages to specific groups of customers.

4. Chatbots: Use machine learning to build chatbots that can handle customer inquiries and provide personalized responses in real-time.

5. Fraud detection: Use machine learning to identify fraudulent activity, such as fake reviews or account creation. This can help protect your business and improve customer trust.

6. Optimization: Use machine learning to optimize your marketing campaigns by identifying the most effective strategies and tactics.

7. Sentiment analysis: Use machine learning to analyze customer feedback and identify sentiment, which can help you understand how customers feel about your brand and inform your marketing strategies.

There are many other ways to leverage machine learning for digital marketing, and the specific approach will depend on your business goals and resources.