Several factors contribute to data decay, including:
Email Address Changes: People frequently change their email addresses for various reasons, including changing jobs or switching email providers. Inactivity: Subscribers may become inactive over time, either because they are no longer interested in your content or have abandoned their email accounts. Typos and Errors: Inaccurate data entry can lead to incorrect email addresses, which will cause emails to bounce. Unsubscribes: Subscribers may opt-out of your email list for various reasons, contributing to data decay.