Redmine

I installed Redmine 1.2.2 and Whining 0.0.4.

After configuring Whining to verify the issues in 1 day (all priorities), I created a scheduled task (whining.bat) to be activated exactly after the next 24h, with the following command:

rake redmine:send_whining RAILS_ENV="production"

However, i didn't receive any e-mails, despite the Command Prompt window not showing any errors, just like when I ran the rake command by myself one day after the one who was assigned for the scheduled task.

What am I doing wrong?