[MlMt] killing any imap / mailbox state

[Randy Bush]

>> so a family member seems to have achieved a 'creative' state in their
>> account; likely cause by things such as a Sent mailbox with ten years
>> of messages.  is there a nice way to tell mailmate to clear all state
>> for an account, wipe all caches, ...?
> If you don't want to delete and re-add the account (which is quite
> effective)

i am quite willing to do that, iff it is effective.  i.e. MM does not
keep a cache or two just to help me if i delete and then reinstate an
account.

> you can select all of the messages that are causing you heartache

not when the heartache is not being able to see them in MM

randy