Once your new subscriber has opted in, they receive an email message from you of all the emails you send, either as part of an autoresponder series, or as a broadcast. This is the one that will have the highest open rates, sometimes in excess of 75%. So it pays to put some thought into what you say here. Just like your download page, you can make another offer. Again, your new subscriber is primed to take action. So now is a good time to tell them what their next step is.
You could also take this opportunity to help her learn more about you and your business by encouraging them to actually consume the content. Far too many free downloads are never even opened, let alone acted upon. And when that happens to funnel is ineffective. It's fun better if you can encourage your readers to use the content you create. You can do that simply by asking a question or pointing out. It's far better if you can encourage readers to use the content that you've created.
You can do that simply by asking a question or pointing out an important section. For example, you might say, Don't miss the worksheet on page four. It will help you outline your next coaching program quickly and easily. Now you've piqued her interest with the promise of a worksheet and she's more likely to read through the rest of your guide and to take action on the suggestions their exercise, plan your follow ups.