UpdateMessage Method
Alters flags assotiated with a message in the current mailbox on the IMAP server.
Syntax
imapclient.updateMessage(UID, setFlags, clearFlags, [callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
Use this method to alter flags associated with a UID message in CurrentMailbox.