Several factors influence your sender IP reputation, including:
1. Bounce Rate: High bounce rates can negatively affect your reputation. 2. Spam Complaints: Frequent spam complaints are a red flag for ISPs. 3. Email Engagement: Low open rates and click-through rates can harm your reputation. 4. IP Address History: A history of spammy behavior on your IP can be detrimental. 5. Blacklists: Being listed on spam blacklists can severely impact your reputation.