Our Sender Certification program is designed for reputable senders that meet top mailbox providers’ and subscribers’ expectations, and follow industry-standard best practices. In this guide, we’ve outlined our Audit requirements in order to provide information about the checks we perform which allows Sender Certification to evaluate your request for additional IP addresses along with sending information for the currently-Certified IP address(es). By checking your email program against these guidelines, you can greatly increase your chances of adding your new IPs or mailstreams to the program as a Certified Sender. If any of the below items do not fulfill the stated Requirement, please reach out to us at firstname.lastname@example.org to discuss your options. For all items below, further details around our Requirements can be located here.