Fix Microsoft 365 Account Storage Full and Unable to Send Email
Question details
The user is unable to send or receive emails in Outlook.com because their total Microsoft 365 cloud storage capacity has been reached.
- Product
- Microsoft 365 / Outlook.com
- Device & OS
- not provided
- Scenario
- Attempting to send or receive emails when the overall Microsoft cloud storage limit is full.
- Observed behavior
- Outlook.com blocks incoming and outgoing emails, even if the specific email mailbox quota has not been exceeded, due to shared storage limits across Microsoft services.
Ensure you have your Microsoft account credentials ready so you can log into your account dashboard on the web to manage and review your shared cloud storage.
Free Up Space in Microsoft Cloud Storage
Identify which services are consuming your storage and delete unnecessary files, photos, or emails to clear up space.
Microsoft cloud storage is shared across Outlook.com, OneDrive, and Microsoft Teams. Reaching your overall cloud storage limit will block email functionality, even if your specific mailbox storage isn't completely full.
Log into Outlook.com on the web, click on 'Settings' (the gear icon at the top right), and select 'View all Outlook settings'.
Navigate to 'General' and then click on 'Storage'. Here, you can review exactly how much storage is being used by emails, attachments, and OneDrive files.
Delete large email attachments, old promotional emails, and unnecessary files or photos in your connected OneDrive account.
Empty the Outlook 'Deleted Items' folder and the OneDrive recycle bin to permanently erase the files and free up your storage capacity.
Upgrade Your Microsoft Storage Plan
If you cannot delete existing files or emails, you will need to purchase additional cloud storage to restore functionality.
Try WPS Office for a Lightweight and Compatible Experience
While WPS Office cannot fix Microsoft account storage limitations, it serves as an excellent, free alternative to Microsoft Office. It offers a comprehensive suite for document editing that does not force you into heavily restricted cloud storage quotas for basic application functionality.
- 1. Download WPS Office: Visit the official WPS Office website and click 'Free Download' to get the installer.
- 2. Install the Suite: Run the downloaded installer and follow the simple on-screen instructions to set up WPS Office on your computer.
- 3. Open Your Documents: Launch WPS Office and open your existing Microsoft Office files directly with zero compatibility issues.
Frequently Asked Questions
Why is Outlook saying my storage is full when my mailbox is mostly empty?
Microsoft shares your total cloud storage limit across OneDrive, Microsoft Teams, and Outlook.com. Even if your email mailbox has plenty of space, a full OneDrive account will prevent you from sending or receiving new emails.
What items count towards my Microsoft cloud storage limit?
Your Microsoft cloud storage quota includes files and photos stored in OneDrive, attachments and inline images in Outlook.com emails, and message attachments or recordings in Microsoft Teams.
How long does it take for emails to work again after freeing up storage?
After deleting files and emptying your Outlook and OneDrive recycle bins, it can take anywhere from a few minutes to up to 4 hours for Microsoft's servers to sync the new storage capacity and restore email functionality.
