Newsletter is a recurring email sent to subscribers with updates, education, news, offers, or curated content.
It matters because email is one of the few channels a business can own directly. Strong email fundamentals improve trust, deliverability, segmentation, and long-term lead nurturing.
Example
A garden center sends a monthly newsletter with seasonal care advice and upcoming workshops. Readers receive a recurring editorial update, rather than an isolated promotion or a message triggered by one purchase.