When set to TRUE this property will log detailed information at the INFO level each time an email is sent.
These outputs help tracking the progress of the sending and the state of the connection with the SMTP server.
They also sum up all the values set with the wrapper.event.<event_name>.email.* properties and applying to the current event.
The default value for this property is FALSE, meaning that these outputs will be logged at the DEBUG level.
Any errors or warnings happening when sending an email are always shown as their respective log level and are not impacted by this property.
Globally for all events: wrapper.event.default.email.debug property, or
For a specific event: wrapper.event.<event_name>.email.debug 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.
Please see the overview of Event Mails for the usage examples.