Send automatic email to blog subscribers when a new post is published

https://preview.webflow.com/preview/brainlint-c4d01f?utm_medium=preview_link&utm_source=designer&utm_content=brainlint-c4d01f&preview=783a1141f978d822266f09a6a1c49d4f&workflow=preview

I need to be able to send an automatic email to my blog subscribers when a new post is published. You’d think this is the easiest thing to do but I don’t know how. If someone can tell me the easiest way to do this or help me set it up I would really appreciate it.