I have several email addresses. A couple are outlook.com (exchange) addresses and a couple are POP3. As I understand it, Outlook stores the outlook.com emails in an OST file and the POP3 emails in a PST file. Right? In any case, I have both OST and PST files.

I recently bought a new computer. Due to poor planning on my part, I started having Outlook access email on the new computer without first bringing the PST & OST files over. So now I have PST & OST files on two different computers.

Even worse, the folder structure is not the same.

I would like to merge the emails, contacts, tasks, calendar events, etc. from the two PST files and the two OST files. This would be pretty painful to do manually.

Is there a tool that I can use to merge them? It would be great if it also checked for duplicates, but that is not a requirement.

This needn't be freeware. I am happy to pay for something that works well.

Thanks for any leads.