ListUnseenMessages Method
Queries a list of unseen messages available in the current mailbox on the server.
Syntax
imapclient.listUnseenMessages([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
Requests a list of unseen messages (i.e. not having Seen flag set) present in CurrentMailbox.