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2968
What are my email quotas and message limits?


Mailbox quota

Every staff and student mailbox has a 100GB storage quota. 

Shared mailboxes have 50GB storage which can be extended if required. 

If you exceed your quota you will receive an email warning from IT Services. You will need to delete any emails that are no longer required to free up space. If you are still unable to prune your emails sufficiently to move back within your current quota, contact the IT Service Desk for further assistance.

 

Email sending limits

In order to prevent accidental or malicious abuse of the email system there are limits on the size of messages which can be sent and received.

 

Max message size

For all mailboxes the allowed maximum size of an individual message is 50Mb . If you need to shared large files with others it best practice to send a link to where the files are stored eg. OneDrive. 

 

Recipient Limits

The maximum number of emails you can send will depend on your type of user account. For security reasons if you attempt to send more messages than your quota your account will become disabled and you will need to contact IT Services. 

 

Students 
  • 200 emails (internal or external ) per day

Staff 

  • Internal emails: unlimited (up to max of 10,000 per day) 
  • External emails: 200 per hour 
  • Recipient limit: 800 recipients in any 1 email 

Post-graduate Researchers  

  • Internal emails: unlimited (up to max of 10,000 per day) 
  • External emails: 1000 per hour (up to max of 10,000 per day) 
  • Recipient limit: 800 recipients in any 1 email 

Other accounts:  

For other accounts eg. Shared mailboxes or service accounts or individual accounts that require bulk sending of mail the following limits apply 

  • Internal emails: unlimited (up to max of 10,000 per day) 
  • External emails: 1000 per hour (up to max of 10,000 per day) 
  • Recipient limit: 800 recipients in any 1 email 

 NB (each recipient is classed as 1 email and so still limited to 1000 externals per hour). 

 

Advice for bulk sending emails:  

To avoid issues with quotas you can send larger quantities of mail in batches or you can use distribution lists. 

For further information please see our Guide to sending bulk emails 

If you need to send more than the above limits or require further advice then please contact IT Services to discuss your requirements. 

 

 

 

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This is question number 2968, which appears in the following categories:

Created by Steve Eastty on 10 August 2023 and last updated by Lucy Pearson on 12 September 2023