An email list is a collection of email addresses used by individuals or organizations to send messages to multiple recipients at once. This tool is commonly used for marketing, newsletters, or updates, allowing businesses to communicate efficiently with their audience. People can join an email list by subscribing, often through a website or social media. Once subscribed, they receive regular emails that may include promotions, news, or valuable content. Managing an email list effectively can help improve engagement and build a loyal community around a brand or topic, such as online shopping or health tips.