olá, preciso de uma luz, estou com o seguinte problema: authenticationfailedexception: 535 5.7.139 authentication unsuccessful, vendo as orientações anteriores, sei que é um erro de autenticação e fiz alguns processos mais sem sucesso.

vagner 0 Reputation points
2024-11-19T17:09:53.8333333+00:00

Estou fazendo o vinculo de serviço de e-mail com nosso sistema interno e quando tento fazer o teste de envio de e-mail acaba não enviando e foi identificado um erro no log, segue imagem anexada.

o mesmo diz ser um erro de autenticação, sendo assim não consegui identificar o motivo desse erro.

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  1. Bruce Jing-MSFT 6,025 Reputation points Microsoft Vendor
    2024-11-20T08:26:57.2866667+00:00

    Hi,@vagner

    Thanks for posting your question in the Microsoft Q&A forum.

    To my knowledge, there may be other two possible causes of this issue. Please refer to this link and check point 3 (Azure Security Defaults) and point 4 (Conditional Access policy): Error: Authentication unsuccessful

    123478-08.jpg

    These settings would block Legacy Authentication.


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