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IMPORTANT: Act now to ensure Google and Yahoo users receive your bulk emails after Feb. 1

Starting Feb. 1, Google and Yahoo will enforce security measures to protect email recipients from spam and phishing.

This change will affect those who send bulk email using an application that can send to more than 5,000 email addresses at a time  such as Emma, Mailchimp, Constant Contact, and Salesforce.

If the third-party application is not in compliance, bulk emails to Google and Yahoo accounts will be marked as spam or blocked completely.

Take action now to register your application with the Duke DMARC team and ensure the application your department and/or unit uses to send bulk email is in compliance –

1) send a test message from the third-party application to for analysis, then

2) follow up with another email from your Duke account indicating your department and/or unit

The Office of Information Technology’s Domain-based Message Authentication Reporting and Conformance (DMARC) team will follow up regarding your third-party application’s compliance with the new security measures. Learn more about DMARC:

Should you have questions about third-party applications sending bulk emails from Duke, contact