<DKIM> OfflineIMAP ignores messages in folders with '.' in their name

[Jorge]

November 26, 2018 8:00 PM, "Nicolas Sebrecht" <nicolas.s-dev at laposte.net> wrote:

> On Mon, Nov 26, 2018 at 07:54:28PM +0000, Jorge wrote:
> 
>> Thank you for the reply. I would choose '+' as the sep. It does not
>> occur in any folder and is legal in GNU/Linux filesystems. However, how
>> can I keep my existing e-mails and their Notmuch tags? When I change
>> sep to '+', won't OfflineIMAP create a new 'INBOX+Sent' folder in place
>> of the current 'INBOX.Sent'? Ditto for lots of other folders.
> 
> Yes, that's how it will go.
> 
>> Will
>> Notmuch recognize that the emails are the same, and keep my tags?
> 
> Sorry, I don't know.

In the Notmuch mailing list, David Bremner said:

    I _think_ it should be OK.  Notmuch
      1) Tracks file renames
      2) Attaches tags to message-ids, not to files.

    As a precaution, it is always worthwhile to have a "notmuch dump"
    and or full backup before attempting anything drastic.
    
My last doubt is: how can I safely avoid OfflineIMAP redownloading my
4GB of emails?  The solution needs to be require relatively little
manual work, because if it takes hours of labor then I would rather
accept the inefficient redownload.  Note that renaming lots of folders
according to a simple rule is not a problem, because I use Emacs Dired.

And would everything still work if I choose '/' as sep?

Regards