Question: Can you suggest an email marketing tool that uses machine learning to personalize product recommendations to customers?

If you're looking for a heavy-duty email marketing tool that uses machine learning to personalize product recommendations, Listrak is a good option. The company's platform offers a single view of each customer across email, SMS, social, push notifications and direct mail, and includes AI Recommendations for product suggestions, along with predictive analytics and dynamic content. It's geared for retailers and brands trying to get more out of their customers and boost revenue.

Another strong contender is Marketing Cloud Personalization from Salesforce. This AI-powered system offers personalized marketing experiences across the web, email and mobile apps. It includes options for personalized content and offers, segmentation and rule-based decisioning. The machine learning technology can be used to recommend products and content based on customer behavior and to offer real-time promotions for maximum engagement. It's geared for enterprise-scale businesses, but it's a sophisticated option for optimizing marketing.

Personyze is an all-in-one personalization tool that uses machine learning and behavioral targeting to create dynamic cross-channel experiences. It includes product recommendations with customizable display widgets, email personalization with dynamic content, and AI-based suggestions. The tool integrates with common services like Segment, WordPress, Shopify and Magento, and offers a free trial so you can evaluate its abilities, so it's good for businesses of all sizes.

Last, Retention Science is an AI-powered email and SMS tool for ecommerce businesses. It automates lifecycle touchpoints and offers optimized campaigns with AI-predicted subject lines, content and send times. The tool also includes a drag-and-drop automation workflow editor and integrates with major ecommerce tools for more advanced customer segmentation. It's a good option for businesses that want to get more out of their customers and scale their marketing efforts.