Details
Description
When using an SMTPAppender a mail is only delivered on a fatal event if there occured an info event before.
Prior fatal events are ignored by SMTPAppender - other Appenders log them.
A more detailed explanation/discussion including an example program can be found at:
http://stackoverflow.com/questions/17657983/log4j2-smtpappender-does-not-send-mails-with-error-or-fatal-level