HUIT does not recommend using IMAP or POP to connect to your Office 365 Outlook mailbox. Email clients that are configured via IMAP will experience a variety of limitations, security and performance issues. These issues include:

• Loss messages due to data throttling  which occurs when you are attempting to move mail. Throttling is controlled by Microsoft and cannot be changed, adjusted, or removed

• Most system message flags and all custom flags are not supported. Only the "Read/unread" and "Important" flags are available.

  ...

While your existing URL for Outlook on the web will still work, we recommend updating your bookmarks to mso.harvard.edu. From there you can launch the Outlook Web App directly from the homepage by clicking the Office 365 Email & Calendar link in the upper right-hand corner of the page.

You can also access the...

These conference rooms may not be migrated until later. In the meantime, to see the availability of these rooms, please type in the explicit email address for the desired conference room–you only have to do this once, then Outlook have it stored in the local address cache for subsequent meeting reservations.

If you were able to access the shared email or calendar before you migrated, it is possible that you are trying to access a mailbox that has not yet been moved to Office 365 Email & Calendar. We try to migrate groups and shared accounts at the same time, but sometimes we miss an account or can't move everyone on the same day. 

Please contact ...