I have created app in azure and get access token with the graph api, I have added the permission for the SMTP.send and all required but not able to authenticate user, returns error 535 5.3.7 authenticate unsuccessfull

Dhrumil Technource 0 Reputation points
2023-11-01T07:24:56.32+00:00

I have created app in azure and get access token with the graph api, I have added the permission for the SMTP.send and all required but not able to authenticate user, returns error 535 5.3.7 authenticate unsuccessfull

Microsoft 365
Microsoft 365
Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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Outlook
Outlook
A family of Microsoft email and calendar products.
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Microsoft Graph
Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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Office Development
Office Development
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. SokiGuo-MSFT 24,946 Reputation points Microsoft Vendor
    2023-11-03T05:25:34.4233333+00:00

    Hi @Dhrumil Technource

    Welcome to our forum!

    Looks like the issue is more related to Graph API. Please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client. The following is for informational purposes only.

    Based on my search, since you received the errors 535 5.7.3 Authentication unsuccessful. There are a few things you need to check, see under Error: Authentication unsuccessful.

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    Hope this helps!


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