Well this may be why I’ve had issues all day

Current Status: Engineers continue to perform tests on the affected networking capacity in order to develop a plan to remediate impact.

User Experience: End users are not directly affected by this issue.

Customer Impact: Customer impact appears to be limited at this time. Any users or mailboxes that are provisioned within Exchange may not synchronize properly to the Office 365 environment. This may result in mail flow or mailbox access issues for those users after DirSync attempts to perform an Active Directory synchronization.

Incident Start Time: Saturday, March 21, 2015