after a full 12 hours the server load has reduced, but I still have IMAP clients that have no mail in their sub folders, but the mail is on the server showing in their webmail. This is serious and ST should at least address this thread.
I would also like to have an explanation of why the server needs to re-sync my users? is this a compliance standard or a performance reason? The release notes state the below?
"UID validity values of 0 are no longer used when syncing with IMAP as required by the IMAP RFC This will cause all folders synced with IMAP that had a UID validity value of 0 to re-sync all messages, resulting in a large spike in bandwidth usage for a short time after installation"