This add-on connects your newsletter plugin to the SparkPost email delivery service, enabling you to send bulk emails with improved deliverability. It is designed for site administrators who need a reliable, third-party mail service to send newsletters to their subscribers.

• SparkPost Integration: Links your newsletter plugin directly to SparkPost, allowing you to send emails using their infrastructure.
• Domain Validation Guidance: Provides instructions for the critical step of validating your sending domain within SparkPost's console to establish sender reputation.
• API Key Configuration: Walks you through generating and securing the necessary API key from SparkPost to authenticate the connection.
• Turbo Send Option: Offers a setting to increase sending speed by using concurrent mail processors, potentially multiplying delivery rates while respecting hourly limits.
• Connection Testing: Includes a test function to verify the setup is correct before enabling the service for live sending.