An email list is a collection of email addresses used for sending messages to multiple recipients at once. Businesses and organizations often create these lists to communicate with customers, share updates, or promote products. Subscribers usually opt-in to receive emails, ensuring that the audience is interested in the content. Managing an email list involves organizing contacts and segmenting them based on interests or demographics. Tools like Mailchimp or Constant Contact help users design campaigns, track engagement, and maintain compliance with regulations like the CAN-SPAM Act. This allows for effective communication and marketing strategies.