MJUM email system down


We've discovered that the email relay system on our journal server failed at some (as yet) unknown point in the past.  This means editors have not been receiving updates or messages sent by authors through the system, and authors have not been receiving updates from editors.  Until the situation is rectified, we've temporarily disabled submissions of new articles.  This is not a long term change in the status of the journal; we'll begin accepting articles again when the email relay is fixed, and when we have manually contacted authors as necessary to sort out the current status of their submissions.