Globally for all events: wrapper.event.default.email.recipient property, or
For a specific event: wrapper.event.<event_name>.email.recipient property.
The "<event_name>" component of the property name can be
either the keyword "default",
or one of the Event Types.
By setting the default property,
all Event Types which are not set explicitly will take on that value.
The Wrapper is not a mail server and will NOT attempt to retry sending of emails.
If an error is reported by the server as the mail is being sent, that will be logged,
but the Wrapper will otherwise forget about the mail.
For this reason, we recommend sending alert emails to a local mail server
to guarantee that they will be sent on to external addresses.