Email delivery is required for authentication process to complete processes of mails.
A dedicated IP address involves a manual set up of dedicated resources such as DNS, dedicated email queue on email engine, and dedicated bounce management for your organization.
Your messages may end up in the spam folder due to content filter rules and or blocked entirely. You may never know that your messages are not being received. This is known as a “false positive”, giving you a skewed report on the effectiveness of your campaigns.