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dse_na3@docusign.net quarantined by Microsoft Purview Defender as Phishing

  • February 6, 2026
  • 2 replies
  • 115 views

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Date 2/6/26. 

Thousands of emails from Docusign today, from the email dse_na3.docusign.net. Microsoft Purview Defender has quarantined all of these as phishing emails. Has this happened to anyone else? We had to manually release almost 2000 emails. 

2 replies

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  • Community Moderator
  • February 11, 2026

Hello ​@gschultz 
Thank you for reaching out, and welcome to the Docusign Community! We appreciate your question and assure you that we are fully committed to providing you with the best service possible.
We don't have visibility into any Microsoft Defender dashboards to check whether other customers are facing the same issue. Suppose Microsoft quarantines it; it's unlikely we will find anything in our logs. In the past, with these kinds of problems, what we noticed is that the recipient mail server, in this case, Microsoft, usually has some spam detection algorithm that falsely classifies the email as spam or phishing, thus resulting in quarantine.

 

Sincerely,

Ma. Cassandra | Docusign Community Moderator
 


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  • Community Moderator
  • February 23, 2026

Hello ​@gschultz

How are you? I'm checking in to see if you still need help. If yes, please reply here with more context, or confirm if the issue has been resolved. 

If you run into any problems, we're happy to help with those here. Wishing you a smooth rest of your day!

 

Sincerely,

Ma. Cassandra | Docusign Community Moderator

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