Use a non MFA Office 365 email account to send outgoing mail from Loome Publish.

Provide the User Principal Name and Password here.

You will also need to create an Azure Application Registration with the Microsoft Graph delegated permission of Mail.Send and provide the Client Id here.

Enter the Tenant Id of the Azure Ad app registration.
Enter the User Principal Name of the account used to send email.
Enter the Client Id of the Azure Ad app registration.
Enter the password of the account used to send email.