Answer:
Setting expectations
Explanation:
In business, setting expectations refers to the effort that you make to inform the customers about your goods or services, so they have a general idea on what they can get by making a purchase.
You can see this in this part of the excerpt:
You’ll be receiving updates from me on how to send better emails on a monthly basis, but if you’re looking to update your email preferences, you can do so anytime here.
This sentence represent the service that you will give to the receiver of the email. it set up a time period when the service will be given and how to adjust it.