DMARC Report Analyzer

What is DMARC?

Domain-based Message Authentication, Reporting and Conformance (DMARC) is a DNS-based standard for email authentication that enables email administrators protect their domain from spoofing. In the past, DMARC was considered an optional feature. Now, configuring and maintaining SPF, DKIM and DMARC is essential for organizations that send mail to external recipients.

Starting in early 2024, Google and Yahoo enforced best practices for email sent to Gmail and Yahoo recipients. Google has published detailed guidance for ensuring your library's email is delivered to Gmail inboxes successfully. Without valid SPF, DKIM and DMARC configured, libraries cannot successfully deliver email to the majority of recipients.

OPLIN Provides DMARC Report Analyzer

Configuring DMARC for the library's email domain provides you with visibility into how recipient mailservers handle the library's mail by providing DMARC deliverability reports. Reviewing DMARC reports can help find misconfigurations of your SPF and DKIM records, among other issues. 

OPLIN hosts an instance of the open-source DMARC analyzer parsedmarc to help libraries manage and easily review DMARC reports. Parsedmarc summarizes DMARC reports for easy review in a Kibana dashboard and weekly CSV summaries. To add an account for your library, please email support@oplin.ohio.gov.

If you would like assistance with configuring valid SPF, DKIM, and DMARC records for your library's email domain, please email support@oplin.ohio.gov.

Resources for Configuring DMARC

MXToolBox SuperTool: Check your email domain's DNS configuration

Demystifying DMARC: Sean Whalen explains configuring SPF, DKIM and DMARC in depth

Learn DMARC: Send an email to an interactive tester that analyzes your email domain's configuration in real time