1. Poor Subject Lines: If your subject lines are not compelling, recipients may not even open your email, let alone click on any links inside. 2. Irrelevant Content: Content that doesn't resonate with your audience will not encourage them to click on links. 3. Bad Design: A poorly designed email can be hard to read and navigate, discouraging clicks. 4. Improper Segmentation: Sending generic emails to a broad audience rather than targeted emails to segmented lists can lower engagement. 5. Call-to-Actions (CTAs) Issues: Weak or unclear CTAs can fail to prompt recipients to click.