Aweber I had used it too. You know the double opt in asking the already subscribed subscribers to confirm again was a great put off for me. In real cases, you could lose about 30% of your subscribers just due to this double opt in required. Trust me if i had subscribed earlier and again a subscription request comes, its a real put off for me as a reader.

Enter the autoresponder. The autoreposnder (or as ConvertKit calls it, a Course), is a series of messages that get sent in succession automatically. You write them once, determine the frequency, and then subscribers get these same messages no matter when they join your list. It’s a fabulous strategy because you build it once and then you can rest knowing that even if you can’t send something in real-time, they are still getting these carefully crafted emails.

If you’ve been following along from the beginning, you have now learned how to grow your email list to epic proportions, you’ve segmented your list so that your emails are highly relevant to each individual subscriber, and you’ve learned how to send amazingly effective emails that have a high open-rate. Now you are ready to automate the process and turn your campaigns into money-making machines!
With Aweber however, this is not that easy to do. With Aweber, each and every one of your subscribers is tagged with a message number which indicates which followup emails they have received already. To prevent a subscriber from receiving a specific followup email, you must set the subscriber’s message number to be higher than the email sequence number.
Using the Personalize dropdown, you can insert custom snippets like your subscribers first name, or sign up date, and AWeber will automatically insert that data specific to each subscriber if we have it. If you collect first name, for example, you can send an email that says Hello Tom, or Hello Mary, or Hello John, depending upon who you’re sending to.