DMARC email security protocol to change in July
DMARC email security protocol to change in July
As you are probably aware, for the past year plus, IT Services has been using a compliance rule in Google that tags the subject line of incoming emails sent from a MiamiOH.edu email address that fails the Domain-based Message Authentication, Reporting & Conformance (DMARC) compliance check. That tag displays as [DMARC Failure - Notify Sender].
DMARC was implemented by IT Services to better protect the MiamiOH.edu domain from unauthorized use by phishers and spoofers, thereby protecting Miami’s brand. DMARC verification uses information in email headers to verify a sender's authenticity. The purpose of adding this tag is to help all of us to identify emails that will fail their DMARC compliance check as we progress towards total DMARC enforcement.
Up to this point, we have asked members of the Miami community that if you receive an email that has the tag [DMARC Failure - Notify Sender] to notify the sender of the email to let them know that they need to contact IT Services in order to work towards securing their email system.
Beginning on July 11, 2025, IT Services will be taking the next step of moving any email messages that fail the DMARC check to quarantine. This means that you may see these messages end up in your Spam folder.
If you have questions about DMARC you can go to the DMARC website to learn more.
If recipients of your emails are notifying you that your emails are having the subject line appended with the tag [DMARC Failure - Notify Sender], you can fill out , and IT Services will contact you with assistance. If you have already created a ticket, IT Services is aware of your issue and will be contacting you soon.