[MlMt] DRAFTS issues with MailMate and Protonmail

[Thomas Baker]

On Fri, Mar 13, 2020 at 03:04:19PM +0100, Tom Baker wrote:
> > However, when I do the following:
> > 1. Click on an address under "Sources".
> > 2. Click on the "Drafts" mailbox.
> > 3. Click on "Mailbox"...
> > 
> > ...The option "Take Offline" is greyed out.
> 
> This is my interpretation of what Benny actually wrote:
> 
> "The best you can do is to select the Drafts mailbox within each account
> (under Sources) and then use “Mailbox > Take Offline”. This is
> essentially the same thing as if MailMate supported some kind of local
> drafts setting."

To be precise, the message I get is:

    MailMate encountered the following error: “Server response: “M4 NO
    mailbox Drafts does not exist”. Command attempted: “M4 SUBSCRIBE
    Drafts”.”.  Mailbox: “Drafts”.