Outlook Storage Full: How to Fix

Are you facing the "Outlook storage full" error and wondering how to fix it? You're not alone. This issue can be quite frustrating, but don't worry, there are several effective solutions you can try. Let's dive into them.

Before we start, remember that Outlook stores data in various places, including your mailbox, sent items, deleted items, and other folders. It's crucial to understand that the storage limit applies to the entire mailbox, not just the inbox. Now, let's explore how to fix this issue.

Understanding and Clearing Outlook Cache

Outlook stores temporary files, known as cache, to improve performance. However, this cache can grow over time and consume significant storage space. Clearing the cache can often resolve the "Outlook storage full" issue.

Here's how you can clear the cache in Outlook:

Clearing the Cache in Outlook for Windows

1. Click on the "File" tab, then select "Options" and "Mailbox Cleanup".

2. Click on "Empty Cache Folder", then click "OK".

Clearing the Cache in Outlook for Mac

1. Click on the "Tools" menu, then select "Empty Cache".

2. Click "Yes" to confirm.

Managing and Deleting Large Emails and Attachments

Large emails and attachments can quickly fill up your mailbox. It's essential to manage and delete these items regularly.

Here's how you can find and delete large emails:

Finding and Deleting Large Emails in Outlook for Windows

1. Click on the "Search" bar, then select "All Mailboxes".

2. In the search bar, type "size:>10M" (without quotes) to find emails larger than 10MB. Adjust the size as needed.

Finding and Deleting Large Emails in Outlook for Mac

1. Click on the "Search" bar, then select "All Mailboxes".

2. In the search bar, type "size:>10M" (without quotes) to find emails larger than 10MB. Adjust the size as needed.

Archiving Old Emails

If you still have plenty of old emails that you need to keep but don't use frequently, consider archiving them. Archiving moves emails out of your mailbox but keeps them easily accessible.

Here's how you can archive emails in Outlook:

Archiving Emails in Outlook for Windows

1. Select the emails you want to archive, then right-click and select "Archive".

2. Choose the archive folder and click "OK".

Archiving Emails in Outlook for Mac

1. Select the emails you want to archive, then click on the "Move" button in the toolbar.

2. Select "Archive" and choose the archive folder.

Regularly maintaining your Outlook mailbox can prevent the "Outlook storage full" error from occurring. By clearing the cache, managing large emails, and archiving old emails, you can keep your mailbox clean and organized. If you're still having trouble, consider contacting Microsoft support for further assistance.