Web hosts who are not protected by an automated outbound spam filter run the risk of having their unsecure network compromised by spam.
IP reputation services such as Spamhaus keep track of abusive IPs. When spam is sent from a web or email hosting machine, that machine attains a negative IP reputation and can no longer reliably deliver email to the Internet. In especially severe cases, a provider’s entire network is blocked.
While we know that the delisting process is long and arduous, it can also end up costing web hosts in the long-term. In this white paper, we analyze the hidden costs that are incurred during the blacklisting and delisting process.