Several factors influence your IP reputation, including:
Bounce Rates: High bounce rates, especially hard bounces, can harm your IP reputation. Complaint Rates: Frequent spam complaints from recipients can negatively affect your reputation. Sending Volume: Sudden spikes in email volume can raise red flags with ESPs. Engagement Rates: Low engagement rates, such as low open and click rates, can indicate poor sender quality. Blacklistings: Being listed on email blacklists can severely damage your IP reputation.