Email appending is the process of adding missing or outdated email addresses to an existing database of customer information. This is typically done by matching the customer’s name and postal address with a third-party database to obtain their email address. This allows businesses to expand their reach and communicate with customers through a more direct and efficient channel. However, it is important to obtain proper consent from customers before appending their email addresses to ensure compliance with privacy regulations. Email appending can help businesses improve their email marketing efforts and maintain a more accurate and up-to-date customer database.