To get back to why I am writing this post...
One of my biggest beefs with the Mail app is that you can only play a sound bite to indicate you have new mail.
If you are like me and have multiple windows open and are either playing music in the background or got your tv on as well, you won't hear that notification and may not even notice the little new email notification on the Mail icon in the Dock.
So I did a little searching around to see if I could find an app/plugin that would, at the very least, popup a window to let me know new mail has arrived. Also, that the window remains open until I close it. (If you are away from your machine and come back, a notification window that comes up then fades away after a few seconds, is not very helpful).
What I found was a Mail plugin called Herald.
This app does exactly what I need! It plays a sound when new mail has arrived (I chose "You've Got Mail") and it shows a popup window that stays visible until you close it. Perfect!!!
Here are the settings I am using:
I hope you enjoy this free app as much as I do!