Outlook for Mac 2011 Version 14.5.6

OS X El Capitan Version 10.11.4

When using outlook, everything works great for my Gmail account, but does not work for my MSN account.  When I click send/receive all and look at the progress bar, it shows that outlook is uploading Junk  x/y.  After the uploading is finished with the junk.  It starts again with the same number of messages (y).  Outlook has not downloaded/uploaded any new messages for the past week, but my junk messages are up to date.

Please help.

Thanks in advance!