Yes, you can convert multiple Thunderbird mailboxes with attachments to PST using a tool like MailsDaddy Thunderbird to Outlook Converter. It's designed for bulk migration and ensures all data, including attachments and folder structure, is transferred accurately.

If you need to move a lot of Thunderbird mailboxes and attachments to PST format, a good program can help you do it faster and easier. One simple way is to use a specific converter program that can change several files at once and keeps your data safe. You can use FixVare Thunderbird to PST Converter. These tools can work with more than one file at a time, so you don't have to convert each mailbox one at a time. this Software that has a simple interface, works with massive Thunderbird files, and keeps the folder structure the same is an excellent solution. It makes sure that the results are correct and that all attachments are included in the conversion. You can quickly switch to Outlook without losing important emails.