Why are we seeing an alert from WSA stating "Internal SMTP giving up on message: Unrecoverable error"?
Environment: Cisco Web Security Appliance (WSA), All AsyncOS versions
Email alert message similar to following are seen: Internal SMTP giving up on message email@example.com[error message] Unrecoverable error
WSA periodically sends system generated email messages to the configured recepients. Recipient email addresses can be configured from "GUI -> System Administration -> Alerts -> Alert Recipients".
If the WSA is unable to communicate with a corresponding email server or any configured SMTP realy, an alert will be sent to all other configured users specifying an SMTP error. The alert is typically sent when multiple attempts at sending emails have failed.