The best place to start is to open the Mailbox Cleanup tool. The following steps apply to Microsoft Outlook 2021, Outlook 2019, and Outlook 2016: 1. Reducing the size often improves performance.Ĭaution: Before starting these steps, take the time to back up your Outlook.pst file (stand-alone version), which is usually found under the Outlook Files folder in Documents. And you can still clean up your Outlook mailbox size if you are running Outlook as a stand-alone (POP3) version.
However, it’s still a best practice to reduce the number of items in Outlook for simpler organization and faster search. Note: With the move in many organizations from Exchange Server (local/network) to Exchange Online (cloud/Office 365), the following steps will be less important as storage space is dramatically increased. Try these tips for a faster, more organized approach to keep your mailbox smaller and easier to work with.
Is your mailbox full? Are you getting weekly or even daily messages from your system administrator saying you need to reduce the Microsoft Outlook mailbox size? This can lead to a lot of wasted time cleaning up your mailbox.
