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Error with the Authentication unsuccessful: 535 5.7.139 Authentication unsuccessful, the user credentials were incorrect. [BL1PR13CA0350.namprd13.prod.outlook.com 2025-01-24T12:41:29.244Z 08DD3B9677304052]

  • January 24, 2025
  • 2 replies
  • 186 views
Freshman I
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At the Email Activity I get the error:

535 5.7.139 Authentication unsuccessful, the user credentials were incorrect. [BL1PR13CA0350.namprd13.prod.outlook.com 2025-01-24T12:41:29.244Z 08DD3B9677304052]

 

 

    2 replies

    Freshman I
    • salvarado23
    • Freshman I
    • September 11, 2025

    I am having the same issue, Did you get this resolved and how?

    Acumatica Employee
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    • CJayalath49
    • Acumatica Employee
    • September 23, 2026

    Hello ​@ehernandez ,

     

    Enable the SMTP    
    Review the below article as it explains how to enable the SMTP: Enable or disable SMTP AUTH in Exchange Online | Microsoft Learn

     

    Hope this helps.

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