Division of Financial Services
Financial Information Services
<div>Starting Monday, November 10, 2025, Cornell will begin tagging emails that fail DMARC policy with a security warning. Looking forward, IT staff should be aware that, starting Wednesday, January 28, 2026, DMARC-non-compliant emails will be blocked. <br> <br>To support this transition, notifications and reminders have been sent to non-compliant EGA address owners with instructions on what they need to do to comply with DMARC policy and avoid disruptions. In addition, IT Service Group directors have received notices and reminders, including a link to a spreadsheet of affected accounts and their administrator, to help them directly support their customers with the transition. <br><br></div><div>These resources links provide key details about the process needed to meet DMARC policy. <br><br></div><ul><li><a href="https://it.cornell.edu/news/cornell-moves-forward-dmarc-enforcement-prev... Moves Forward on DMARC Enforcement to Prevent Email Fraud</a> (IT@C News) </li><li><a href="https://it.cornell.edu/email-cornell/dmarc-compliance-information">Gather Customer Information Required to Configure DMARC Compliance</a> (support for filling out informational form) </li><li><a href="https://it.cornell.edu/email-cornell/set-subdomain-email">Set Up a Cornell Subdomain for Email Sender Addresses</a> </li><li><a href="https://it.cornell.edu/email-cornell/official-mailings-and-third-party-m... Mailings and Third-Party Mail Senders</a> </li><li><a href="https://it.cornell.edu/email-cornell/dmarc-email-failure">Why Are My Cornell Emails Failing DMARC and Not Being Delivered?</a> </li></ul>
