What is CertifiedDomain?

The CertifiedDomain service is the first domain-based whitelist of good email senders. As more and more email senders embrace email authentication standards such as DKIM and SIDF (Sender ID Framework), it's now time to assign and track reputation at the internet domain level. The CertifiedDomain whitelist service solution is agnostic to the underlining authentication technology.

CertifiedDomain is an entry level service, soon to be followed by additional domain-based products. Goodmail will continue its investment in new and existing premium products including CertifiedEmail, PostmarkedEmail and CertifiedVideo.

Meeting the evolving needs of the email industry, CertifiedDomain further extends Goodmail’s leadership in standards-based certification products for trusted brands that engage with consumers via email.

Goodmail has built the largest and most trusted email certification ecosystem consisting of the world's leading Internet Service Providers, Webmail Providers, Email Service Providers and Email Server (MTA) Vendors and is uniquely qualified to maintain and publish the domain-based whitelist.

How does the CertifiedDomain whitelist service compare to the CertifiedEmail™ service?

CertifiedEmail is the most secure email certification system in existence. Given the extra security mechanisms inherent with CertifiedEmail, and the ability to track individual messages, CertifiedEmail is granted the highest level of privileges by ISPs and webmail providers.

Like any whitelisting service, CertifiedDomain lacks those extra security provisions found in the CertifiedEmail service. While participating in the CertifiedDomain whitelist will help deliverability, it cannot guarantee delivery or the other exclusive benefits associated with the CertifiedEmail service.

About CertifiedDomain

Available immediately, CertifiedDomain is comprised of two lists:

  • A free, publicly available version of the CertifiedDomain list can be found at
    http://www.goodmailsystems.com/CertifiedDomain.txt .
  • A detailed list which includes more granular domain information, multiple reputation scores, policy information and additional proprietary data is licensed by Goodmail to select partners.

Apply for inclusion in the CertifiedDomain whitelist

What's the process for getting on the CertifiedDomain whitelist? Start with the button on the left which will take you to the CertifiedDomain terms of service, and you'll be taken through the rest of the process.

Step 1, read the terms and conditions Step 2, start the accreditation process Step 3, pay the accreditation fee

Frequently asked questions about the CertifiedDomain service

  • What Is CertifiedDomain?
    As domain based email authentication standards (such as: DKIM and SIDF) become widely available Goodmail Systems is taking leadership with CertifiedDomain™. CertifiedDomain is the first domain-based whitelist available to receivers and to good email senders. CertifiedDomain is independent of the underlying authentication technology.
  • What Is The Difference Between CertifiedEmail and CertifiedDomain?
    Like all whitelists, CertifiedDomain does not guarantee delivery. Only CertifiedEmail’s multi-layer security guarantees delivery, along with active images, links and a trust icon. Domains featured on the CertifiedDomain list should experience preferred treatment by a growing number of ISPs and other receivers. CertifiedDomain improves deliverability and inbox placement by the receiving entities.
  • How Many Senders Are Currently Enjoying a CertifiedDomain Listing?
    There are currently more than 1,000 domains on the CertifiedDomain list. The list is available for anyone to review athttp://www.goodmailsystems.com/CertifiedDomain.txt
  • Are Senders Required To Employ Email Authentication In Order to Qualify for CertifiedDomain?
    Yes, before looking up a domain on CertifiedDomain, a receiver must confirm the message was indeed sent from the domain it purports to. Hence, senders must authenticate their messages to enjoy the benefits associated with CertifiedDomain. Goodmail is agnostic as to what authentication methods are used: it could be DKIM, Sender ID Framework, SPF, DomainKeys or anything else. Once the message is authenticated, receivers can consult the CertifiedDomain list.
  • Who Is Using CertifiedDomain?
    The basic CertifiedDomain whitelist is available to any email receiving entity without any fees or licensing required. A comprehensive list with more details on each domain is licensed by Goodmail to partnering receivers. Goodmail expects CertifiedDomain will be used by all current ISP partners but also by tier-two ISPs, as well as, enterprises and SMBs.
  • How Do Senders Apply For CertifiedDomain?
    Senders who want to apply for CertifiedDomain will need to follow these easy steps:
  1. Read the CertifiedDomain terms and conditions on Goodmail’s website
  2. Begin our simple five-step accreditation process (the link is on the terms and conditions page)
    • Accreditation fee is $399 per domain annually.
    • Most CertifiedEmail senders qualify for the CertifiedDomain service at no additional cost.
  • What Is In Store For The CertifiedDomain Product Roadmap?
    This product announcement is for the initial release. Additional announcements are expected later on this year.
  • Can a Sender Be Removed From The CertifiedDomain List And What Is The Process?
    Yes, if Goodmail receives data from partners or other evidence showing a domain no longer meets our requirements, Goodmail will, at our sole discretion, remove the domain from the list.
  • Are There Any Inbox Benefits If The Sender Is Featured On The CertifiedDomain List?
    This is determined by the ISPs. Currently it is not the practice of any ISP to turn on images solely because of the inclusion of a domain on a whitelist. It is likely that the ISPs that selectively turn images on will consider the inclusion of a domain on the CertifiedDomain list as a positive input to this message-by-message decision. CertifiedEmail guarantees inbox placement, functional images and links and the trust icon.
  • Are There Any Technical Requirements such as rDNS or WHOIS?
    Goodmail doesn’t impose such technical requirements as a precondition to being listed on CertifiedDomain. However, an ISP sophisticated enough to validate consult the CertifiedDomain list, is also likely to perform such checks and to use the results of these checks as input in determining their algorithm.
  • Can I use CertifiedDomain for prospecting and non-opt-in email messages
    No. CertifiedDomain's requirements, while different than CertifiedEmail's, does share many of the same requirements - notably opt-in only and no prospecting.
  • Step 1, read the terms and conditions Step 2, start the accreditation process Step 3, pay the accreditation fee