Outlook Performance Issues With Large Mailboxes – [Resolved]

admin | Modified: 2020-10-05T19:53:15+05:30 | fix-error, How to, Outlook

Microsoft Outlook is the most prominent email client application that is used by many business users. But as the times goes, users start facing many issues while reading, moving, or deleting emails. Usually, the problem arises due to the increasing size of your Outlook PST files. When Outlook mailbox contains a large number of items in its mailbox, then the size of the Outlook mailbox will increase unnecessarily large. Eventually, it will affect the Outlook performance and efficiency.

Let’s discuss what are those Outlook performance issues with large mailboxes.

Possible Reasons That Cause Performance Issues with Outlook

  1. If the size of your Outlook data file is exceeded by 10 gigabytes (GB) or more.
  2. When there are too many items in your inbox, sent items, deleted items folder, etc.
  3. Corrupt or damaged PST files can also affect the Outlook performance.

In order to avoid all such issues, first, we are going to discuss some manual workarounds.

How to Troubleshoot Outlook Performance Issues with Large Mailboxes Manually?

You must reduce the size of your Outlook data file by moving or archiving items from the file. To do the same follow the given instructions carefully to resolve Outlook performance issues when there are too many items.

Trick 1: Delete Unnecessary Mailbox Items

The first and foremost method that one should to resolve Outlook 2010 performance issues with large mailbox is by removing redundant messages and attachments. Here’s are the simple steps to do so:

  1. Open Outlook application.
  2. On the Home tab in the Delete group, click Clean Up.

Trick 2: Empty Deleted Items

After deleting the unwanted email messages, it is advised to empty the deleted Items Folder of the Outlook.

  1. Choose File > Options > Advanced tab.
  2. From the Outlook start and exit option check the Empty Deleted Items folder when exiting Outlook.
  3. Hit OK to confirm.

Trick 3: Maintain the PST File Size Limit

Microsoft Outlook has a predefined file size limitation that the user should maintain. And if you increase that limit then you may suffer from many issues. The storage capacity of the PST file depends on the versions of MS Outlook you’re running. Here’s is the list provided:

  1. Outlook 2010 and later version is 50GB.
  2. Outlook 2007 is 20 GB.
  3. Outlook 2002 is 2GB.

Trick 4: Reduce Outlook data File Size

When you removed all the unwanted emails and attachments from the Outlook and still you are facing performance issues. Then it is advised to compact the PST file size. Shrinking the PST file will compress the size of the PST file to resolve the issues with large mailboxes.

  1. Launch Outlook.
  2. Right-click on the Deleted items folder and then click Empty Folder.
  3. Click File > Account settings > Account Settings.
  4. Under the Data Files tab, choose your Outlook data file and click Settings.
  5. Lastly, click on the “Compact Now” button.

After completing the steps you will see Outlook PST file will be in its original size. And it will not affect any files already present on it.

Trick 5: Use Cached Exchange Mode

Sometimes using the cached exchange mode will enhance the performance of Outlook 2019, 2016, 2013, 2010, and all below editions. Generally, users run Outlook in Online Mode, and in that mode, it reads directly from the server. This can cause Outlook performance issues with large mailboxes and slow internet.

All these manual methods are useful when the PST file is in a healthy state. But if your PST file is corrupted due to a large size mailbox, in that situation, the above approaches failed to resolve this problem.

Automated Solution to Fix Performance Outlook Issues with Large Mailboxes

As we already discussed the Outlook data file has its predefined size limit, if it exceeds its limit then it becomes corrupted. Thus, to repair damaged files, users are recommended to opt for a third-party tool. The Outlook Performance issues with large mailboxes are easily resolved by this Outlook Recovery wizard.

It is one of the best software that removes all types of corruption from the file and brings it back in the healthy working state. Moreover, it has the ability to performs quick recovery from a severely corrupt PST file.

The Bottom Line

The above blog provides both the manual and automated solutions to fix Outlook performance issues with a large mailbox PST file. If manual solutions doest not works, then it is advised to go with the professional tool. Suggested automated tool is specially designed to deal with the PST file size errors. It helps to improve your Outlook performance issues effortlessly without any data loss.