For a small personal mailbox, manually troubleshooting Thunderbird is manageable. But what happens when an organization has several Thunderbird profiles with missing or inaccessible Inbox messages?

I recently compared different approaches after seeing several reports about disappearing Thunderbird emails. The causes aren't always the same: some cases involve folder-view settings or filters, while others involve MBOX index problems or IMAP synchronization.

That makes bulk recovery more complicated because you don't necessarily know whether every affected profile has the same problem. I would want to preserve the original mailbox first, inspect what is actually recoverable, and then export only the required data.

For anyone researching Fix Thunderbird Inbox Emails Disappeared, the manual methods are useful for diagnosing one mailbox. But I'm curious about enterprise-scale recovery.

Has anyone used the DRS Softech Thunderbird Backup Tool for multiple Thunderbird profiles? From what I found, it supports bulk mailbox processing, preserves email structure and metadata, provides a preview before export, and offers options such as date filtering and duplicate removal. I'm mainly interested in real user experience rather than marketing claims. Did it save time compared with repairing each Thunderbird profile individually?