From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0.0) Gecko/20020530 BuildID: 2002053012 After allowing automatic folder compaction I found that all my inbox mail was gone (150 messages, all unread), my sent mail folder was empty (about 1000 messages) and several of my other folders (various number of messages in each) were completely missing. Reproducible: Sometimes Steps to Reproduce: 1. ??? 2. 3. Expected Results: It should have preserved my folders and included messages!
To add to this, a few days ago I found some 'ghost' messages in my otherwise empty inbox. I could not remove them; everytime I deleted them they would come back when I moved to a different folder and then back to the inbox. Being curious, I took a look at the 'inbox' file with 'Notepad' and found it was full of messages that weren't showing up in the Mozilla inbox window (the file was 17.7 megs!). I wrote a small utility to extract the individual files and discovered that there were 3636 messages in the file. I am retaining copies of the inbox and inbox.msf files should you care to examine them. Since then, I have created new inbox and inbox.msf files and things seem to be working correctly again... Jim McQueeney <email@example.com>
I think this bug is same: Bug 137139
Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.2a) Gecko/20020910 I can confirm this bug. I compacted my all folders and then my Inbox become empty. I used "Compact This Folders". When the Mozilla was working I started some new "Compact This Folders" process. Later I watched my c:\...\Users50\MozProfile\...\Mail\pop.tvnet.hu folder. There was an Inbox.msf file (1295 byte), but nowhere was Inbox file. I restarted my Mozilla then I saw an Inbox file (0 byte). It's a very serious bug. I lost some e-mails.
*** This bug has been marked as a duplicate of 173357 ***