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[arveds]

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[rdantas9]

I regret to inform you that the PowerShell script, 'Send-O365MailMessage', appears to no longer be functioning as expected.
If Multi-Factor Authentication (MFA) is enabled on your account, it seems to trigger an error.

To address this, I have made modifications to lines 65 and 66 as follows:
[System.Management.Automation.PSCredential]
$Credential = $(Get-Credential),

Additionally, the conditional statement on line 93 seems to be malfunctioning. As a workaround, I have commented out lines 93 to 99, with the exception of line 98.

Lastly, the '-SendWithSMTP' parameter also appears to be causing an issue, resulting in the following error: '535 5.7.3 Authentication unsuccessful'.

I changed the line 98, because there is an incorrect variable.
From: -LoginHint $cred.UserName
To: -LoginHint $credential.UserName

[arveds]

thank you for your feedback.
this code was originally intended in 2021 to help with the deprecation of the SMTP sending ability in Exchange online.
Sending with SMTP is meanwhile switched off by Microsoft so the switch '-SendWithSMTP' and the code behind will not work any longer. I updated the readme accordingly.
Please, note that meanwhile there are easier ways to send emails via Graph API and some new cmd-lets and changes in the Graph API itself.