Outlook Error 0x8007000E: How to Fix Out of Memory During Send or Receive

You see error 0x8007000E when Outlook tries to send or receive email. This error message states there is not enough memory to complete the operation. The problem is usually caused by a corrupted Outlook data file or add-in conflict, not your computer’s actual RAM. This article provides steps to clear the error and restore normal email flow.

Why Outlook Reports an Out of Memory Error

Error 0x8007000E is a system-level error code for insufficient memory. In Outlook, it rarely means your PC lacks physical RAM. Instead, Outlook encounters a problem it cannot process, often related to its data storage. The most common source is a corrupted Outlook Data File, which is the PST or OST file storing your emails, calendar, and contacts.

When this file has logical errors, Outlook may fail to allocate internal memory buffers needed for tasks like downloading new messages or sending queued mail. Other triggers include faulty add-ins that load into Outlook’s memory space and interfere with normal operations. A damaged Outlook profile, which holds your account settings, can also cause this specific error during communication with your mail server.

How Large PST Files Contribute to the Problem

Outlook Data Files have size limits. For older PST files in the ANSI format, the limit is 2 GB. For newer Unicode PST files and OST files used with Microsoft 365, the limit is 50 GB. As a file approaches its maximum size, it becomes more prone to corruption. This corruption can manifest as error 0x8007000E because Outlook struggles to read from or write to the file efficiently, mimicking a memory shortage.

Steps to Resolve the Out of Memory Error

Follow these methods in order. Start with repairing your data file, as it is the most likely cause.

Method 1: Repair Your Outlook Data File

1. Close Outlook completely
   Check the system tray near the clock to ensure Outlook is not running in the background. Right-click the Outlook icon and select Exit if it is present.
2. Open the Inbox Repair Tool
   Press the Windows key, type “scanpst.exe”, and press Enter. This tool is installed with Outlook. If it does not open, navigate to its location, typically C:\Program Files\Microsoft Office\root\OfficeXX or C:\Program Files (x86)\Microsoft Office\root\OfficeXX.
3. Locate and scan your data file
   In the Inbox Repair Tool window, click Browse. Navigate to your Outlook Data File. The default location is C:\Users\[YourUsername]\AppData\Local\Microsoft\Outlook. Select the file and click Start.
4. Begin the repair process
   If errors are found, click Repair. The tool will create a backup of the original file before fixing it. This process may take several minutes for a large file.
5. Open Outlook and test
   Launch Outlook after the repair finishes. Try to send a test email to yourself and check for new messages to see if error 0x8007000E is resolved.

Method 2: Disable Outlook Add-ins

1. Open Outlook in Safe Mode
   Close Outlook. Hold the Ctrl key on your keyboard and click the Outlook shortcut. A confirmation dialog appears. Click Yes to start Outlook in Safe Mode, which loads without add-ins.
2. Test send and receive
   In Safe Mode, try to send and receive email. If the error does not appear, a third-party add-in is likely the cause.
3. Access the add-ins manager
   Close and restart Outlook normally. Go to File > Options. Select the Add-ins category from the left pane.
4. Manage COM Add-ins
   At the bottom of the window, ensure “COM Add-ins” is selected in the Manage dropdown. Click the Go button.
5. Disable all add-ins
   In the COM Add-ins dialog, uncheck every box in the list. Click OK and restart Outlook as prompted.
6. Re-enable add-ins one by one
   If the error is gone, re-enable add-ins one at a time, restarting Outlook after each, to identify the faulty one.

If the Primary Fixes Do Not Work

If repairing the data file and disabling add-ins does not stop error 0x8007000E, try these advanced solutions.

“There is not enough memory” error persists after repair

Create a new Outlook profile. A profile stores your account settings and can become corrupted. Close Outlook and open the Control Panel. Search for “Mail” and select Mail (Microsoft Outlook). Click Show Profiles. Select your current profile and click Remove. Confirm the deletion. Then, click Add to create a new profile, re-add your email account, and set it as the default. This process gives you a fresh configuration.

Error occurs only with a specific email account

Remove and re-add the problematic account within your current profile. Go to File > Account Settings > Account Settings. Select the email account showing the error and click Remove. Confirm, then restart Outlook. Go back to File > Account Settings > Account Settings and click New to add the account again. This refreshes the connection and local data file for that account.

Outlook crashes with the error when sending large attachments

Reduce the size of your Outlook Data File. Large files are more unstable. Use the Mailbox Cleanup tool. Go to File > Tools > Mailbox Cleanup. Click View Mailbox Size to see folder sizes. Use the tools to archive old items to a separate PST file or empty the Deleted Items folder. Keeping your primary data file under 10 GB improves stability.

Error 0x8007000E vs Other Common Outlook Send/Receive Errors

Item	Error 0x8007000E (Out of Memory)	Error 0x800CCC0F (Server Connection Dropped)
Primary Cause	Corrupted local data file or add-in conflict	Network interruption or mail server timeout
When It Occurs	During processing of messages before send/receive	During the network transmission to/from server
Data File Impact	High – often requires PST/OST file repair	Low – usually unrelated to local files
Typical Fix	Run Inbox Repair Tool or disable add-ins	Check internet connection or restart Outlook
Profile Rebuild Needed	Sometimes, if corruption is severe	Rarely

You can now fix the Outlook out of memory error by repairing your data file or managing add-ins. If the problem returns, consider creating a new Outlook profile as a more complete reset. For ongoing stability, use the Archive feature regularly to keep your main mailbox size manageable and avoid the data file corruption that often triggers this error.