email certificates

Question

Hello

Please i need your help on this issue.

When responding to an email requiring that I approve a change order for software I received the following (attached) error message and was unable to send the email.

I went to your help center and attempted to add a certificate in Outlook (desktop) and still couldn't fix it.

I attempted to follow instructions to configure the exchange admin center and did not understand instructions. Can you help?

Answer 1

Hi @IBN

Thanks for reaching out to the Microsoft Q&A forum.    

Based on your description, I understand you're encountering the error message:  "Invalid Certificate: Microsoft Outlook cannot sign or encrypt message because there are no certificates." 

To better understand your situation and assist you effectively, may I confirm whether you've tried the steps I outlined earlier, as illustrated in the image below? 

For more detailed guidance, you can refer to the following Microsoft article: Secure messages with a digital ID in Outlook - Microsoft Support   
Please feel free to share any updates or let me know if you need further assistance. I’m here to help. 

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