Warmbox.ai is a sophisticated email warm-up service designed to prevent your emails from landing in spam by raising your inbox’s reputation and increasing email deliverability. It supports a vast array of email providers including Gmail, Outlook, and many others, providing a plug-and-play setup that requires no technical skills. Warmbox.ai operates by sending realistic emails using GPT-4 technology, interacting with them to simulate positive engagement, and precluding them from being marked as spam. It offers customizable warm-up options, detailed analytics, a private network of inboxes to enhance your reputation, and is trusted by over 2,000 companies.