Several factors can contribute to reputation damage in email marketing:
1. Spam Complaints: When recipients mark your emails as spam, it signals to Internet Service Providers (ISPs) that your emails may not be trustworthy. 2. High Bounce Rates: Sending emails to invalid addresses can hurt your sender reputation. 3. Low Engagement Rates: Poor open and click-through rates indicate that your emails are not resonating with your audience. 4. Blacklisting: If your IP or domain is blacklisted, your emails will be blocked by major ISPs.