Еvery inbox provider is monitoring the IP address of incoming traffic and tracks a reputation score for those IPs. Having a dedicated IP means that you are the only one responsible for its reputation. This is important because one of the major factors in determining what emails land in the inbox, without being blocked or filtered, is the reputation of the IP address sending it.
We generally recommend a dedicated IP if you send more than 100,000 emails a month, though many Mailbox Providers (MBP) require 150,000 emails a month and 5,000 a day to build a good IP reputation. Below that, you may not send often enough to establish one.
In contrast, a shared IP address is one that is pooled among many different senders. This means the email behavior of one sender can affect others. Shared IPs are sometimes necessary because not every sender has enough email volume to support a dedicated IP.
Dedicated IPs are available to high volume senders on our Premium and Custom plans, subject to compliance verification. If you are sending more than 100,000 emails per month (and ideally 3,000 per day), you can apply for a dedicated IP address through our Customer Support team. Simply request more information from an agent in our online ticket system and, if applicable, we’ll work with you to obtain and warm up your IP.