If you do this, Outlook won't have to sync with the server every time you click on a new item (as it will already be in the data file.) How you do this will depend upon which version of Outlook you're using. When you connect Outlook with either IMAP or POP3, you should have Outlook set up to download the complete message (instead of just the header). Or Microsoft might issue a patch to the application to resolve a speed issue or security hole. In some cases, those updates can either break or cause problems with the communication between Outlook and Exchange. Why? There are times when Microsoft might update Exchange. Make sure you allow the updates to happen. Many people don't realize that with Windows updates, the updates for Microsoft Office are also 'hidden.' But it's not just the Office updates that can help speed up Outlook. LEARN MORE: Office 365 Consumer pricing and features 1: Update Windows In the end, you should have a much faster Outlook experience. But you never know what level of skills you're dealing with, so we'll cover all the bases. Of course, some of these suggestions might seem to have a bit more ''duh' factor than others. And none of these techniques requires a single configuration change to your Exchange server (IMAP or POP3). Fortunately, there are several things you can do to make Outlook not only usable, but significantly improved. In fact, when not looked after, Outlook can become nearly useless. If you've used Microsoft Outlook for a while, you know that it can slow down. Windows 11: Tips on installation, security and more (free PDF).

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