OWA Offline Mode in Exchange 2013

I’ve had a few questions recently on Outlook Web App offline mode functionality on Exchange Server 2013.  As a general statement on my opinion, OWA 2013 Offline mode is a fantastic addition to Exchange 2013.  OWA offline mode is made possible by the HTML 5 offline standard.  While Outlook Web App Offline mode is a great addition, it doesn’t necessarily replace a full client for offline usage.

OWA Offline Mode Browser Requirements

At this time, OWA 2013 supports offline mode on:

  • Internet Explorer 10
  • Safari 5 or greater on OS X
  • Google Chrome v24 or later.

Outlook Web App Offline Mode Limitations

Outlook Web App offline mode has the following limitations:

  • Email from the last 3 days, up to 150 total items will be available offline.
  • Your calendar will contain the previous month and the next year of appointments.
  • Calendar reminders will exist for a limited period of time.  If a computer is offline for a long period of time calendar reminders would no longer appear.
  • Archives are online only, and as such do not exist offline.
  • While contacts from your Exchange Server account are available offline, the auto-complete cache does not work.
  • Searching and sorting may not fully function
  • Attachments will not be available offline.

To me, the single largest end-user issue is the lack of attachments offline.  Be sure to instruct users to download attachments before hopping on that plane if they intend to review documents while traveling.

Come see me at TechEd 2013 as a hands on guide in the Exchange 2013 and Lync 2013 labs.

I will be working as a staff member at TechEd 2013 in the capacity of a hands on guide in the Exchange 2013 and Lync 2013 labs.  Microsoft Certified Master at TechEd 2013

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