The server respond with: S: * 1 FLAGS (\Seen) S: 1 OK Fetch completed
As opposed to failing the STORE.
Cyrus will fail the store. This has always been its behavior (as far as I can remember). Mirapoint's server behaves the same way, and we do have OE users. (I'm not one of them, so unfortunately I have no idea what happens, but I suspect there aren't a lot of mailboxes getting opened read-only to begin with; perhaps that's why we haven't hit the problem.)
Tim
