An auto responder is generally more similar in content to a newsletter than it is to a direct sales email, though it combines many of the elements of both. The content can vary wildly though based on your industry segment and what you've promised subscribers. The most common type of auto responder content will be tips or advice, but you can also do great things with recipes, serial fiction pieces, inspirational quotes and a variety of other topics. Essentially, you are looking for content that will engage users over a period of time while also providing a platform to encourage sales of your product or service or visits to your website.
When a subscriber is sorted into a segment, it can trigger an automation to send to them. Each person’s interactions with your email campaigns or your website can trigger a sequence of follow-up emails based on their interests, allowing you to hone your message to your targeted audience. For example, if someone visits your pricing page, you know they’re probably further down your sales funnel and will want to follow-up appropriately. Or if they went to a specific product page or clicked on a link for that product, you can send additional information about the product, testimonials and more.