Comment 37 for bug 603402

I tried disabling IDLE and setting max cached connections to 1 but there appeared to be no change to the issue.

I also changed max cached connections to 0 and still no change.

I tried selecting multiple folders (Sent Items, Drafts etc) to try and force TB to refresh the read flags within the Inbox folder but no joy.

Interestingly, if I read an email in TB, that email is almost instantly flagged as read on my iPhone.

There is still a delay of many hours if I read an email on my iPhone or web client to be marked as read in TB.