It may remain in the ‘ Outbox’ of your Outlook account for up to one minute until the next synchronization starts.
There could also be delays in mailbox synchronization, or sync errors may occur that can prevent users from sending or receiving new emails and lead to send/receive errors in Outlook or cause conflicts in shared folder.Īn email message sent by an Outlook user is not sent immediately to the addressee. In addition, Outlook takes more time to fetch the information and may fail to locate emails in search. ost files is 50-80% larger than the mailbox size on the Exchange Server. However, an OST file becomes vulnerable to damage due to integrity issues caused by large size (oversizing).įun Fact: Local cache stored in. As a result, all items that you have access to are downloaded in the local cache (OST) that can significantly increase the OST file size. This allows Outlook users to add another user’s mailbox or shared folder to your profile. For instance, when the local cache or OST file grows larger, it consumes the local storage space and may lead to performance issues in Outlook.Ĭached Exchange Mode also works with Shared Folders in Microsoft Outlook 2010 and later versions. There could be various reasons to turn off the Cached Exchange Mode. Turn Off Cached Exchange Mode in Outlook.Reasons to Turn Off Cached Exchange Mode.However, you can change this setting and control how many mail items Outlook can keep offline. By default, 12 months of your mailbox data is stored in the local cache.
Clear cache in outlook 2016 windows Offline#
The changes made offline are stored in the OST file and synced with the Exchange Server when the system goes online or connects to the Exchange Server. The mail items, such as emails, contacts, attachments, notes, calendar items, etc., are cached and stored locally in an Outlook OST (Offline Storage Table) file. It enables Outlook users to access and use their accounts when the internet is unreliable, slow, or unavailable. In this blog, we have discussed the cached Exchange Mode with reasons and steps to turn off work offline mode in Outlook.Ĭached Exchange Mode is an Outlook feature that works with Office 365 and Microsoft Exchange Server mailbox. However, users can switch between Cached Exchange Mode and Online Mode by turning off the Cached Exchange Mode via Outlook options to resolve Outlook issues. The Cached Exchange Mode, also referred to as Offline Mode or Work Offline, is the default connectivity mode for Exchange and Office 365 accounts.
Clear cache in outlook 2016 windows mac#
Microsoft Outlook provides two different connectivity modes, Cached Exchange Mode and Online Mode, when you add or sign in to Outlook client on Windows or Mac using an Exchange Server Account.