Using outdated data can lead to a range of issues:
High Bounce Rates: Sending emails to inactive or incorrect addresses will increase your bounce rate, negatively affecting your sender reputation. Poor Engagement: Irrelevant or inaccurate content based on outdated data will result in lower engagement rates, such as reduced open and click-through rates. Compliance Risks: Outdated data could mean non-compliance with regulations like GDPR or CAN-SPAM, leading to legal penalties.