SMTPAppender Threshold Bug

[Boudreau, Mike]

I tried setting the Threshold on the SMTPAppender in my properties file, but
the threshold remained as the default so that email was sent only for ERROR
and FATAL levels.
 
Is there a bug in the SMTPAppender  regarding the Threshold?
 
log4j.appender.SMTP=org.apache.log4j.net.SMTPAppender
log4j.appender.SMTP.Threshold=INFO