Division of Financial Services
Financial Information Services
<div>On Monday, November 17, 2025, Cornell will begin sending a daily report to customers who use their Cornell email address to send mailings from 3rd parties. These messages will be blocked by DMARC starting Wednesday, January 28, 2026.<br><br>This is the message customers will receive:<br><br>You are receiving this notification because records show that email sent from your Cornell NetID account has failed DMARC email security policy. These details are one example of a message that are currently being tagged as suspicious.<br><br></div><div>From: [EMAIL ADDRESS]<br> MailFrom: [MAILFROM ADDRESS]<br> Sender: [SENDER ADDRESS]<br> Subject: [SUBJECT]<br> IP-Address: [IP-ADDRESS]<br><br></div><div>Date/Time: [DATE-TIME]<br><br></div><div>Messages like this may not be delivered after Wednesday, January 28, 2025, when CIT begins enforcing DMARC policy. <br> <br> For more information, see the following resources about DMARC policy at Cornell:<br><br></div><div>· <a href="https://it.cornell.edu/email-cornell/dmarc-email-failure">Why Are My Cornell Emails Failing DMARC and Not Being Delivered?</a></div><div>· <a href="https://it.cornell.edu/news/cornell-moves-forward-dmarc-enforcement-prev... Moves Forward on DMARC Enforcement to Prevent Email Fraud</a></div><div>· <a href="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fit.cor... Mailings and Third-Party Mail Senders<br></a><br></div><div>Sincerely,<br> <br> Email Services<br> Cornell Information Technologies<br> Cornell University<br><br></div>
