You manually increase Outlook mailbox size without losing e-mails, you archive old e-mails to a local PST file. In Outlook, go to File > Tools > Clean Up Old Items and choose the folder and date range to archive. E-mails archived are moved to a PST file stored on your computer, freeing up space in your primary mailbox. Also, you can shrink the Outlook Data File by going to Account Settings > Data Files > Settings > Compact Now.
But this is limited. Archiving moves emails out of the main mailbox, thus is not as easily accessible without the PST file. It's also something you have to do every now and then manually. Compacting only gives you minimal space relief.
Another effective way of managing and increasing your Outlook mailbox size is by using a MigrateEmails PST Recovery Tool. This comes in handy for users with big or corrupted PST files. It can also help you recover lost data and optimize your mailbox for better performance, ultimately increasing its storage capacity.
How the PST Recovery Tool Works:
- Download and install the MigrateEmails PST Recovery Tool on your computer.
- Click Open to embed a PST file and check the PST path.
- Next, choose the Recovery Setting and optional features >> OK.
- Preview and check mark the embedded PST file and click Save.
- Then, select the folder's path to save the resulting file.
- Use advanced features as per requirement.
- Lastly, click on OK to initiate the process.
