You can now launch Outlook Web App (OWA) in the browser and start working even if there is no network connectivity. The work you do while disconnected is automatically synchronized the next time connectivity is restored. This allows you to be productive using OWA even when you have no network connectivity. It also makes OWA faster and a better experience from remote locations with slow or intermittently connected networks.
Our goal for OWA offline is to support the most common user actions, as far as HTML5 offline capabilities allows. This does not take us to the complete offline support of Outlook on the Windows or Mac desktop, but it matches or exceeds the offline capabilities offered by most Exchange ActiveSync phone clients.
Most email triage and calendar management actions work in OWA while offline. You can:
The offline capability in OWA makes most of your email, calendar and contact information available offline. Some of the available features and limitations are:
You can enjoy OWA offline in IE10+, Chrome 17+ or Safari 5. Over time as the offline capabilities of browsers mature, so will OWA’s offline capabilities You must enable OWA offline functionality on every computer where you want to be able to use OWA without network connectivity. Administrators have the ability to control which users can use OWA offline.
To enable OWA Offline
Using OWA Offline
Now imagine a scenario where you are working on your messages in OWA, and suddenly connectivity is lost
Even if in a no connectivity situation, you can continue working in OWA e.g. compose a new mail
Write the mail and choose the recipient(s). In this example I'm working from my Office 365 Preview account (on my Office 365 Preview tenant @modernoffice.onmicrosoft.com) and I'm composing a mail to my everyday work email @microsoft.com. I hit send and continue working on other tasks.
Now imagine a while later, when connectivity is restored, I open OWA 2010 to read my work mail and sure enough - the mail sent in the Offline scenario is there for me to read (see left side of graphics below).
OWA offline is enabled via a new feature in IE10, called Cache and databases. To access the settings for the cache
From here you can e.g delete the cache (will disable OWA Offline) or change notification settings.