[MlMt] Silencing the beep when mail is checked

[Bill Cole]

On 27 Jul 2015, at 14:16, Paul Hoffman wrote:

> Greetings. I really dislike the frog-beep when MailMate checks my 
> mail, and it disturbs those around me. I have already selected "None" 
> for "Sound" in Preferences -> Counters, but I still hear the beep. 
> Clues?

The UI in "Counters" is a challenge...

There are 4 independent sets of settings there: one for each corner of 
the Dock icon a counter can appear in. Each has its own Sound option. 
You select which Counter you are dealing with by the unlabeled square of 
radio buttons on the left side, so even if a Counter isn't set to show 
on the dock icon, it is identified by where it would be if it was.