sincerely it is not easy for me understand the context and the sense of some sentences... because some terms are not in common speaking around client and accounts.
For example, practically, what is the sync of normal folders instead of special folders? Can I set to sync some folders and not other? Special folders, what is the criteria to define a folder, special?
<string name="account_options_folder_sync_type_incoming">Sync (plain folder)</string>
where "plain" means "not special", "ordinary".
Hi,
'Special' folders means [Draft], [Sent] and [Deleted] which should be properly linked with their corresponding server side folders.
-> Long press on <account Name> -> Options and folders -> Folders ->"Sync with [ Drafts ] folder, " Sync with [ Sent ] folder".
There could be some more server side folders like [Spam] or [Junk] -> "Sync as spam", [Archive] -> "Sync as archive"... and - of course - INBOX -> "Sync (plain folder)".
In addition to these "special" folders the user can create "normal" (ordinary, not 'special') folders. These folders are containing incoming messages (so the user will get notifications, and it will be kept up to date just like the inbox is) and also "as opposed to folders that have special meaning, like [Drafts] or [Sent]".
Therefore these folders should be "Synced (as plain/ordinary folder)".
I hope the explanation above will clarify the technical 'background'.
Best regards
Mikeone