The vMail OLM to MBOX Converter tool ensures that the original folder hierarchy, email formatting, and metadata (To, Cc, Bcc, Date, Subject) are preserved during the conversion process. With vMail OLM to MBOX Converter, users can easily transfer large OLM files without losing any data or quality. It also supports selective conversion, allowing users to export specific folders or items based on their preferences.

More info- https://appsource.microsoft.com/en-us/product/saas/vartikasoftwareprivatelimited1702907737065.vmail-olm-to-mbox-converter?tab=Overview