I logged in this morning to Bing Webmaster Tools and noticed a pop up from Bing asking me if I want to receive email notifications of site issues and also updates.
The notification read:
Bing Webmaster may sent out emails notifying users about specific issues with their sites, as well as periodic webmaster new updates, offers and tips.
Here is a picture of the notification:
Google is big into email notifications for site issues via Google Webmaster Tools. It can't hurt to ask Bing to send you notifications as well, so I suggest you all login and set this up.
Forum discussion at Bing Webmaster Help.
Update: This was part of the recent Bing WMT update from a month or so ago.