Users may have experienced issues using Outlook on the Web (OWA) Users may have be unable to view, create, or reply to email messages from within Outlook in the web. Users may have encountered one or more of the following:
-Opening a new Reply message results in a blank page/pane
-Opening a new message results in a wheel while searching for a contact
-Contacts may not be displayed.
Outlook clients were not affected.

Full service has been restored…

Clients were unable to sync emails using Apple Mail on their Mac computers….

RESOLVED: O365 Public Folders were not Accepting External E-mail…

RESOLVED: Problems Accessing Office 365 Portal…

Some client were experiencing degraded service with Microsoft Office 365 using desktop clients. Clients can use the web client if they are experiencing issues.
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RESOLVED: Mail-enabled public folders were unable to receive email from outside of Office 365/Exchange. …

RESOLVED: Office 365 Authentication Issues…

Clients using Office 365 (O365) for their email were unable to receive emails from non-BU/non-O365 email accounts. Service has been restored and non-BU emails are starting to arrive in O365 inboxes as the built-up queues begin to release….

OneNote was not accessible via the Office 365 web portal….

OneDrive was not accessible via OneDrive sync clients….