The Appwrite team has introduced a messaging feature that enables developers to send emails, SMS, and push notifications within their Appwrite projects using Vonage as a provider. To use this feature, developers need to set up a Vonage API account, purchase a phone number with the SMS feature, and create an organization in Appwrite. They can then create a project, add users, topics, and subscribers, and configure the messaging settings. The feature allows developers to schedule messages, including SMS, and send them at a specific date and time. With this feature, developers can build full-functioning messaging services for their projects.