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Power Platform Community / Forums / Power Automate / Can not Send Email use...
Power Automate
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Can not Send Email used Office365 email address

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Posted on by 3
I used action [ Send email],Config:
I also uesd SMTP service:smtp.office365.com,Unable to send emails。error:
相关 ID: fe3b41a1-bc2c-4fca-9050-af25267b9887
535: 5.7.139 Authentication unsuccessful, the request did not meet the criteria to be authenticated successfully. Contact your administrator. [SG2PR02CA0044.apcprd02.prod.outlook.com 2025-05-07T01:34:01.200Z 08DD8CB272E774A6]: Microsoft.PowerPlatform.PowerAutomate.Desktop.Actions.SDK.ActionException: 无法发送电子邮件。 ---》 MailKit.Security.AuthenticationException: 535: 5.7.139 Authentication unsuccessful, the request did not meet the criteria to be authenticated successfully. Contact your administrator. [SG2PR02CA0044.apcprd02.prod.outlook.com 2025-05-07T01:34:01.200Z 08DD8CB272E774A6] ---》 MailKit.Net.Smtp.SmtpCommandException: 5.7.139 Authentication unsuccessful, the request did not meet the criteria to be authenticated successfully. Contact your administrator. [SG2PR02CA0044.apcprd02.prod.outlook.com 2025-05-07T01:34:01.200Z 08DD8CB272E774A6]
   --- 内部异常堆栈跟踪的结尾 ---
   在 MailKit.Net.Smtp.SmtpClient.《AuthenticateAsync》d__69.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 MailKit.Net.Smtp.SmtpClient.Authenticate(Encoding encoding, ICredentials credentials, CancellationToken cancellationToken)
   在 MailKit.MailService.Authenticate(Encoding encoding, String userName, String password, CancellationToken cancellationToken)
   在 Microsoft.Flow.RPA.Desktop.Modules.Email.Actions.EmailActions.SendEmail(Variant from, Variant senderDisplayName, Variant to, Variant cc, Variant bcc, Variant subject, Variant body, Variant attachments, Variant smtpServer, Variant username, Variant varPassword, Boolean isBodyHtml, Int32 serverPort, Boolean needsAuthentication, Boolean enableSsl, Boolean acceptUntrustedCertificates, Boolean hideBcc)
   --- 内部异常堆栈跟踪的结尾 ---
   在 Microsoft.Flow.RPA.Desktop.Modules.Email.Actions.SendEmail.Execute(ActionContext context)
   在 Microsoft.Flow.RPA.Desktop.Robin.Engine.Execution.ActionRunner.Run(IActionStatement statement, Dictionary`2 inputArguments, Dictionary`2 outputArguments)
 
Please Help me。Last month was still normal
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  • Suggested answer
    Nived_Nambiar Profile Picture
    18,129 Super User 2025 Season 2 on at
    Hi @QingL
     
    Any changes from your organization side on mail authenication - i think issue is related to authenication issue in mail.
     

    Thanks & Regards,
    Nived N

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