Failed to send email from second mail account

Hi all,
Hope you can help.
I want to send email using shared mail account,I add it to my outlook as below.
The first one is my default account, and I want to send mail using the second one.
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I set my activity as below.
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But mail sent failed with this error.
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Does anyone know the reason?
Do I need set something in my outlook or uipath?
Thanks in advanced.
Bella

Hello,
No need to set, please check if your email address contains spaces or something.
Regards.