Archive Older Items
Move old items you want to keep to an archive. You can create a separate Outlook Data File (.pst) that you can open from Outlook any time you need it. By default, Outlook automatically archives items at a regular interval. You can also archive items manually whenever you want. That way, you can decide which items to archive, when to archive them, and where to store them.
Empty Deleted Items Folder
Empty the Deleted Items folder frequently to make sure you aren’t keeping messages you don’t need.
Empty the Junk Email Folder
Periodically empty the Junk Email folder to save your inbox space for messages you actually want.
Store Attachments Outside Your Mailbox
As attachments accumulate over time, they can take up a lot of space. For attachments you want to keep, consider saving them to a team site, to OneDrive, or to folders on your computer.
Delete Emails Over 5 Years from Sent Folder and Inbox
Note: For assistance with archiving your items, please call the IT Helpdesk at (210) 486-4777 option 3