Update on Microsoft 365 Email and OneDrive for Alumni

Summary:

Due to the “Storage Changes for Microsoft 365 Education | Microsoft Education” several measures will be implemented to free up storage space and improve loading times in your primary mailbox.

Your mailbox size will eventually remain 2GB only and OneDrive service will be terminated.  Details of the implementation is tabulated below:

Date  What will happen?   What should you expect? 
Week of 26 May 2025 
  • Online Archive enabled for email. 
  • Auto-removal enabled for deleted email. 
  • Emails older than 2 years are moved to the Online Archive mailbox automatically.  Check your old emails there.  
  • Deleted emails older than 30 days are permanently removed. 
Week of 16 Jun 2025 
  • Email storage becomes 2GB. 
  • Regularly clean your mailbox. 
Jun – Dec 2025 
  • OneDrive storage limit gradually reduces.

  • OneDrive files become READ-ONLY.

  • Unable to edit files on OneDrive.  
  • Move files to other storage options. 
16 Dec 2025 
  • OneDrive will be terminated.
  • Unable to access OneDrive. 

Exchange Online Archive Service:

A new Online Archive mailbox will appear below your primary mailbox, showing as “In-Place Archive – [Your Name]” in Outlook Web. 

Auto Removal of Deleted Items:

Items in your “Deleted Items” folder that have been there for over 30 days will be automatically removed. This includes emails, contacts, notes, calendar entries, and tasks in Outlook. An “Expires” tag will indicate when they will be removed.

expires tag

Some easy tips here to help you manage email storage size to stay within the limit:

  • Check Email Storage Usage
  • Remove old emails from your mailbox regularly.
  • To send large attachments securely, e.g. files, photos, videos, instead of sending as an attachment, save the files on OneDrive/SharePoint first and share the link of the file/folder in email.
  • Empty Deleted Items Folder regularly, though items are auto removed after 30 days.
  • Empty Junk Email Folder regularly.
  • Avoid Cc yourself when sending an email, as a copy is available in Sent Items Folder.

The following are some, but not limited to, cloud storage options available in the market. Please visit corresponding service link for their subscription plans. Be mindful of data security and confidentiality when using public cloud storage services.

  1. Microsoft Personal OneDrive
  2. Google Personal Drive
  3. iCloud
  4. Dropbox
  5. Box
1. Who is impacted by the Storage Reduction? 
All account holders are impacted in this change. 
2. How do I download my files from OneDrive to my PC/another repository?
Please read Knowledge Base article on how to do.