VCO unable to send email notifications due to error "Client does not have permissions to send as this sender". We see the error in UI when we try sending a Test Alert from Configure Alerts & Notifications screen.
VMware SDWAN Orchestrator
The error is coming from the SMTP server. SMTP server doesn't have proper permission to send the email.
https://stackoverflow.com/questions/25357440/550-5-7-1-client-does-not-have-permissions-to-send-as-this-sender-office365
This is not VCO side issue.
This is not a VCO issue. Please check the SMTP server for any error.