[MlMt] Review muted items

[Bill Cole]

On 31 Jan 2019, at 11:27, John Cooper wrote:

> Bill Cole wrote (at 8:11 on 31 Jan 2019):
>
>> A message is muted if it is a thread descendant of a muted 
>> message....if you delete all members of a muted thread, future 
>> replies in the thread are not muted.
>
> That hasn't been my experience. I've occasionally muted high-volume 
> contributors to the MailMate Users group, and new threads by those 
> contributors are muted until I select one and unmute it.

That's odd, because the documentation for muting does not say anything 
about muting being tied to sender addresses.
https://manual.mailmate-app.com/organize#muting