You can have
multiple IP addresses but the question you must ask is why you need them. If you have to send extraordinarily large volumes of data within a specific time-frame on a regular basis, you may need more than one IP address to deal with the task. Using different IP addresses that are segmented according to specific mail streams is another good reason for using multiple IP addresses. The number of IP addresses you need must be driven by factors like job volume, budget, delivery reputation and other factors related to business management.