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Client authentification failure while sending email from office365 account via powershell
Hi I'm trying to send email from office365 account in powershell, but got client not authenticated failure: Send-MailMessage : The SMTP server requires a secure connection or the client was...
The regular way to do this when using modern authentication with MFA would be to allow ‘app passwords’. There are other ways, which I would not recommend, because they potentially lower the security posture.
If that doesn't work or is not allowed in your tenant, other methods may include:
* Disabling MFA (not recommended)
* If MFA is enabled using Azure AD Conditional Access, exclude this user for specifically SMTP from the Azure AD Conditional Access policy
* If you're using Security Defaults within your Microsoft 365 tenant, legacy authentication is blocked by default and can't be bypassed unless you disable Security Defaults
* You can use the Graph API for sending out e-mail programatically (Send mail - Microsoft Graph v1.0 | Microsoft Docs)
I have the same problem, I'm trying to respond to my Outlook emails but it return back to me. Please help
Laila_Taik
How about emailing using outlook directly without the need of smtp.
https://techcommunity.microsoft.com/t5/windows-powershell/using-outlook-application-to-email/m-p/3443892
How about emailing using outlook directly without the need of smtp.
https://techcommunity.microsoft.com/t5/windows-powershell/using-outlook-application-to-email/m-p/3443892
- Thank you, I 'll Try.
