Imap folders updating cached headers

If Outlook is stuck in Offline mode, see Work offline in Outlook.

Just close outlook, (and communicator if you use it as well) delete the OST file, then re-open.This copy provides quick access to your data, and it is frequently updated with the server that runs Microsoft Exchange. By default, 12 months of your email is available offline, but you can control how much mail is kept offline.Top of page Shared folders include Exchange Public Folders, Share Point folders, or another person's Exchange folders when you’re using Delegate Access.The body and any associated attachments are downloaded only when requested by you, or as necessary for synchronization with personal digital assistants (PDAs), auto archiving, and some client-side rules.In a slower connection environment, the Offline Address Book is also not automatically updated.

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