You can effectively Migrate Emails, mails from OST to PST format with the OST to PST converter online application. The Outlook OST to PST import tool filters all email elements effectively and reliably outputs to PST format. The OST to PST export tool to converts many Outlook OST files to PST format without losing data, and it only takes a few simple steps. By using This OST file converter tool to convert files/folder data from OST to PST, Office 365, Gmail, Zimbra, Gmail, EML, EMLX, vCard, ICS, MSG, Live Exchange server, MBOX and etc.
Transfer OST to PST
https://www.perfectdatarecovery.com/...pst-files.html