Here are some MSG to PST converter tools you can use to convert Outlook MSG files into a PST Outlook file. Preserves full attributes (email, contacts, calendars) and supports batch conversion.Standalone converter supporting bulk export with attachments and no Outlook needed. https://www.vsoftware.org/msg-converter.html

Batch convert MSG files into a single PST, maintain folders and attachments, and preview messages before export

Converts multiple MSG files, retains folder structure, and lets you split PST by size, date, etc. Easy-to-use tool with bulk conversion and metadata preservation.