IP reputation is a score assigned to the server IP sending email. Learn how it impacts filtering and how to protect it.
IP reputation is how mailbox providers assess the trustworthiness of the IP address that sends your mail. Poor IP reputation can cause spam placement or outright blocks.
Shared IPs inherit behavior from other senders, while dedicated IPs require disciplined ramp-up and hygiene. Keeping complaint rates low and sending consistently is the most reliable way to protect IP reputation.