Microsoft's Windows Live services experienced a significant outage Tuesday, leaving many users unable to get to their Hotmail inboxes. A company representative said all Windows Live services are affected, though not all users are reporting problems.
Microsoft said it is still trying to determine the cause of the problems.
"We are aware that some customers may be experiencing difficulty accessing their Windows Live accounts," the software maker said in a statement to CNET News.com. "We're actively investigating the cause and are working to take the appropriate steps to remedy the situation as rapidly as possible. We sincerely apologize for any inconvenience and disruption this may be causing our customers."