# Deliverability and List Growth

> A free course on reaching the inbox. Learn authentication, domain warm-up, bounces and complaints, list hygiene, and how to grow a list that wants your email.

Source: https://sendbroadcast.net/university/deliverability

Sending an email is easy. Getting it into the inbox, again and again, is the
skill. This course explains how inbox providers decide where your mail goes,
and what you control: authentication, sending reputation, the health of your
list, and how people join it.

Most of it applies to any email tool. Each lesson also shows where Broadcast
does the work for you.