Email is still one of the cheapest ad channels. The cost to reach a subscriber is equals to how many subscribers you have, and the plan you are paying.
In MailChimp, you can have up to 2,000 subscribers for free. If you are above 2,000, let’s say 10,000, the monthly fee increases to $74.99, which means the cost per reach is $0.007.
Even better, the cost stays the same if you send 1 or 100 emails per month (not that you should send that many emails to decrease the cost per reach.)
There are a few things you can do to drop the cost even lower. In any contact list, you will have people that never opened an email from you. I call them “zombies.”
I’ve written this simple Python script that uses MailChimp Members API, to flag the users with avg. open rate = 0, and also rated by Mailchimp with a value of 1.
The output will look something like this:
Please note that the zombies can be actually zombie bots (that found a way to bypass your form captcha validation.)
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