Sending emails based on user behavior can make messages feel more personal and helpful because they match the actions people take. It means you send emails when someone views a page, buys something, or leaves a cart without finishing the checkout. For example, a reminder email after someone leaves a cart can guide them back in a simple way. These emails often feel more connected to real interest, which can lead to better results. The only concern is that setting them up takes time and tools that can track actions correctly. Do you think behavior-based emails are worth setting up for smaller teams that want something simple?