How to Clear the cache in Outlook for Mac?

When your Outlook for Mac starts to work improperly, you can fix it by clearing the cache. This article provides a detailed guide on how to clear the cache in Outlook for Mac.

Outlook for Mac often slows down or faces performance issues. This problem occurs due to the accumulation of cache in your Outlook for Mac. This issue can be resolved manually by following a few simple steps provided in this article. Basically, you can clear all the accumulated cache in Outlook for Mac in one go, but sometimes users like to remove individual items from the cache folder.

When you work on Outlook for Mac, it is typical of Microsoft Outlook to create and store cache as you proceed. For example, when you are composing an email and specify a destination for it, the address of that specific destination gets cached to the memory as soon as you send it. Next time, when you make a similar entry, the cached information will automatically appear as a suggestion. It implies that cache memory saves the data/key events frequently entered by the user.

Each entry made by the user in Outlook for Mac is stored in a cache, and over time, this data gets accumulated. Thus, the accumulation of data, therefore, occupies a huge memory space in Outlook, which eventually affects the overall performance of the application. But, you can clear cache storage whenever there is a performance issue due to data overload. Moreover, clearing the cache helps you get rid of auto-suggestions when you reinstall the application.

When your Outlook for Mac starts to work improperly, you can fix it by clearing the cache. This article provides a detailed guide on how to clear the Outlook cache.

How to Clear the cache in Outlook for Mac?

What does clearing Outlook’s cache do?

A number of users think that removing Outlook cache would delete their emails, contacts, or other important data from Outlook for Mac. But, in reality, removing the cache from Outlook does not affect anything of importance.

As a matter of fact, caches are temporary support files that facilitate apps and system processes to load faster. When you remove the cache, Outlook for Mac automatically creates them again the next time you run the app. What’s more, we suggest you clear cache files periodically on your Mac to free up disk space and fix performance errors.

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Thus, it’s safe to delete Outlook cache files. If you face some errors with Outlook, refreshing the cache can help you fix them. You can remove Outlook cache files manually or by using App Cleaner & Uninstaller. The uninstaller also allows you to remove or refresh Outlook with just a few clicks.

How do you manually clear the Outlook cache on a Mac?

It is by default, that Apple stores cache files in Library/Caches folder. But, Microsoft Outlook cache is not easy to find, because Outlook caches are saved in deeply hidden subfolders on your Mac computer. However, you can manually find and clear Outlook cache on Mac by following the steps given below and removing Outlook cache files:

  • Close Outlook on your Mac.
  • Open Finder.
  • Press Cmd+Shift+G on your keyboard.
  • In the window that appears, type ~/Library/Caches and press Enter (Return).
How do you manually clear the Outlook cache on a Mac
  • In the Caches folder, find a folder named and remove it.

The above method will clear the complete cache history of your Outlook application. In case, you want to clear individual entries or Auto-complete cache data, you can do it manually.

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How to empty auto-complete in Outlook for Mac?

Sometimes, users want to remove individual entries from auto-suggestions recommended by the cache. Microsoft Outlook facilitates deleting such individual entries as you work with emails and contacts.

In this case, all you have to do is compose an email and remove the auto-suggestions that pop up when you are typing the destination email address. For a better understanding of how to delete Auto-Complete cache in Outlook for Mac, you can follow the steps given below:

  • In Outlook client, click the New email button to create a new email.
  • In the new email window, type an address in the To: field.
  • Click the “X” button next to the address to delete it from the auto-complete list.
  • Repeat steps 2-3 to delete all other email addresses that you want to delete.

In case, you want to manually delete an entry from Recent Addresses, you can follow the steps given for auto-complete.

The manual method given above can solve the regular performance issues easily by clearing the cache memory, but Outlook also faces issues like duplication of data. Many users have reported that their Inbox still shows the emails that are either deleted or moved to some other folder.

Duplicate data such as emails and contacts can consume unnecessary space in your Outlook mailbox and can slow down the application. Unfortunately, Outlook doesn’t provide any direct measure to delete duplicate data from your mailbox.

How to clear cache in new Outlook for Mac?

In case, the Outlook cache gets corrupted – since items from your account are stored in the Outlook cache – you might experience synchronization issues, such as incomplete or incorrect data, with the server. To resolve this issue, you are required to reset your account so that Outlook can re-sync the affected items.

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Here are a few easy steps to resolve the issue:

  • Make sure your computer is connected to the server.
  • On the Outlook toolbar, go to Tools > Accounts.
How to clear cache in Outlook for Mac
  • In the left pane, select the account you want to reset.
  • On the bottom-left, click the three dots and select Reset Account from the list.
How to clear cache in new Outlook for Mac

The above solutions can resolve the issue of caches in your Outlook for Mac.


We have mentioned the solution in the above article regarding clearing of cache, auto-complete, as well as the whole folder of cache items in Outlook for Mac. However, users still facing difficulty with their Outlook for Mac can move to Windows Outlook with ease, by using a third-party OLM converter. Stellar Converter for OLM is a specifically designed tool for users who want to migrate from Outlook for Mac to a more user-friendly email client like Microsoft Windows. Since, Outlook for Mac uses OLM format to store data, to move the OLM data to Windows Outlook, you are required to convert the file to PST format.

Stellar Converter for OLM provides users with cutting-edge technology in the seamless conversion of OLM files to different formats.

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