[Evolution] Folder Synchronization Inconsistencies

[Philippe LeCavalier <support plecavalier com>]

Hi Everyone,

I'm not certain were to start with this one so here's the relevant info...

I use:

Evo 2.26.3
Debian Linux 2.6.30-1-686
XFCE 4.6.1
IMAP remotely hosted with 3rd party [not sure what server they're using - but I imagine I could find out]
My mail is stored as the Inbox being the root folder and subfolders thereafter [many].

The story:

I've recently noticed that when I log in via webmail [horde] certain folders don't contain all my mail. These particular folders have some mail but not near the amount my local system does. Other folders are 100% sync'd with my local archive.

The question:

What should I be looking for in order to get to the bottom of this?

Cheers,
Phil