OST converter freeware

[kkariztakki]

Here is a simple and advanced solution name of KDETools OST converter freeware to convert OST file to PST file and save many  emails, draft, task, attachment, notes, contact, sent item, delete item, journals, and numerous more. Along with This OST to PST conversion software quickly export OST to PST file and manage OST emails properties like TO, Bcc, Cc, subject, from and etc. into New Outlook PST file. This OST to PST Converter tool you can conversion & migrate OST file to PST file with Outlook PST file, Office 365 account, Zimbra, OLM, PST, MSG, EML, EMLX, Gmail, vCard, ICS,  live exchange server, MBOX, PDF, NSF, and etc.


https://www.kdetools.com/blog/convert-ost-to-pst-outlook-2016-2013-2010-2007.html

[Akshay_M]

Use ‘Archiving’ to save OST emails to PST
By enabling the Auto Archive method in Outlook, you will be able to save the items of the OST file in a separate PST file. This method helps you to keep the size of your mailbox manageable. When the size of the mailbox grows and there are multiple messages that are older and you do not require them to be in the mailbox, then you can put them in the archive folder easily. Follow the simple steps to enable auto archiving in Outlook.

Launch the Outlook application, go to File, and click Options.
Go to Advanced and click Auto Archive Settings.
Auto Archive Settings

Now select the number of days in which you want to run auto archiving. Select the folder to save the archived file; also, provide the archiving options and finally click OK.
Select the folder to save the archived file

With this, mailbox items from your OST file will be saved to the PST file as per your archiving settings.