Caching information means that it is saved in a more convenient location so that an application or connection runs faster. For email, caching means that your emails are stored locally on your computer, rather than in a server, so they are easily retrieved through an email application such as Outlook. To save storage space, by default Outlook caches email based on time: while more recent emails are cached and therefore easily accessible, older emails are often not cached and stored on the server. However, you are able to change these cache settings if you so choose.

When searching for an email, you may see the following message in Outlook:

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To view the emails on the server, you can:

1. Click the link to view more on Microsoft Exchange

2. Open Outlook Web App and search for emails

3. Change your cache settings as outlined below, restart Outlook, and search again.