[MlMt] Editing learned recipients.

[aisrael]

>
>
>> How can I specify a different mailbox? And how can I modify the 
>> default behavior? For example is it possible to create a smart 
>> mailbox that would contain whatever is specified by a set of Rules, 
>> and instruct MM to use that mailbox as a source for completions?
>
> Yes, that's exactly what's possible, but MailMate would still only 
> look at the recipient headers of those emails (to, cc). But I'm 
> willing to make that optional if you find it useful.

I would find it useful, but if I am the only one, then I guess you have 
more important improvements to implement. I am not sure how much extra 
work it involves.

>
> Look here for information about 
> [`MmAddressCompletionMailbox`](https://manual.mailmate-app.com/hidden_preferences#sending).
>
I have read that, but I can’t figure out how I specify a different 
mailbox.

Alain