Solve Outlook Storage Full Not Receiving Emails Issue Quickly

Summary: Are you facing the Outlook storage full not receiving emails issue? No problem, you’re not alone. Several users experience this same problem when their mailbox storage reaches its maximum limit. If your mailbox is full, then Outlook stops receiving new emails, and the person who is sending an email gets a delivery failure notification.

So, to resolve this error, this article will help in fixing the Outlook storage full not receiving emails problem using effective manual and automated solutions. Let’s begin.

Why Is Outlook Storage Full Not Receiving Emails?

Before jumping to solutions, it’s important to know the several reasons why Outlook may stop receiving emails due to full storage. Here are some common reasons mentioned below: 

• Your mailbox has reached the maximum storage quota.
• Large attachments are consuming space.
• Deleted emails are still stored in the Deleted Items folder.
• Junk or spam emails are filling up your mailbox.
• Archive settings are not enabled.

Both Outlook.com and MS Outlook desktop application have a storage capacity. Once you cross the permitted limit, your incoming emails will automatically bounce back. To prevent this probelm below are the best ways. 

How to Check Mailbox Storage in Outlook?

Before fixing the issue, you should know how to check how much storage is being used:

For Outlook Web (Outlook.com):

1. Navigate to Settings, then tap on Storage.
2. Manually review your mailbox usage and clean up suggestions.

For Outlook Desktop:

1. Click on File, then select Tools options.
2. Choose Mailbox Cleanup.
3. Finally, check your mailbox size.

Once confirmed that storage is full, follow the solutions below.

Solutions to Fix Outlook Storage Full Not Receiving Emails

In the following section, we’ve mentioned some of the best ways to fix Outlook mailbox full not receiving emails error.

#1: Empty Deleted Items Folder

When you delete emails, they remain in the Deleted Items folder.

1. Open Deleted Items.
2. Select all emails.
3. Click Empty Folder.

This can instantly free up space.

#2: Clear Junk/Spam Folder

Spam emails accumulate quickly and consume storage.

1. Go to Junk Email.
2. Select the unwanted or unnecessary messages.
3. Delete them permanently.

#3: Remove Large Attachments

In the mailbox, attachments consume a lot of space compared to other items. So, it’s essential to eliminate them.

Use the search bar and type:

•  Size must be less than 10MB
• Delete unnecessary large emails.
• Save important attachments locally before deleting.

Note: If your mailbox got large number of duplicates, then eliminating them manually is not the option as it is a very time-consuming process and not reliable. We recommend using an automated solution developed by SysTools Outlook Duplicate Remover Software.

#4: Upgrade Your Storage Plan

If you regularly run out of space, consider upgrading your Microsoft 365 plan to increase mailbox capacity.

This is useful for business users who handle large volumes of emails daily.

How to Prevent Outlook Storage Full Issue in Future?

Here are a few tips to avoid facing this problem again:

• Remove unnecessary emails weekly.
• Clear spam regularly.
• Avoid keeping large attachments in inbox.
• Use cloud storage for files instead of email attachments.
• Enable auto-archive.

Conclusion

In this article, we’ve discussed how to fix the Outlook storage full not receiving emails error using effective manual solutions. We have also shared advanced ways to fix duplicate items. As we all know, Outlook storage full not receiving emails error occurs when your mailbox exceeds its storage limit.