How to solve this error! kindly help

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Send SMTP Mail Message: 535: 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Mailbox. Visit Enable or disable SMTP AUTH in Exchange Online | Microsoft Learn for more information. [MA0PR01CA0017.INDPRD01.PROD.OUTLOOK.COM 2024-01-28T09:34:06.668Z 08DC1F40E5429009] getting this error when using smtp outlook from my office account! kindly help me solve it.

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Hi @Kancharla_Mahija

Your Mail id is not authentication to SMTP, ask your Company IT Team to give permission for SMTP.

Or check the below thread for better understanding,

Check the below thread to sort this error,

Hope it helps!!

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