To host email subs and send emails (like this one) requires a tool. There are tons. I only recently switched from SendGrid to ConvertKit because of their Zapier integrations and custom automations. But since changing I really like how ConvertKit works. It’s intuitive although a little pricey. All of these platforms rack up bigger bills the more you have on your list though so find one that works for you and you like to use as you’re likely going to spend a lot of time using them. It’s probably one of the best expenses to invest in. Many swear by Mailchimp too of course. Carrd has an easy way to integrate a number of these email providers in the form elements (and if not, use Zapier to do it!).
Makerpad offers a free, tailored online program that teaches you how to build in minutes and validate with real paying customers, without code. Guaranteed to help you get something built in 7 days or less, flexible to fit your busy lifestyle and catered to your skills.