Messages disappearing with Mozilla Thunderbird

The problem is not sending but receiving messages,
I have a Free account and Yahoo which have no issues and the one at work which is Oleane.
All are well configured and it only happens with Oleane which is also configured as well as the others.
I don't understand, it worked very well with all the previous versions. That's why I'm asking the question!

Hello,
I have been using Mozilla for my email for a long time, and curiously, without any manipulation, the titles of my various mail folders have changed.
For example, instead of "administratif," I found a code made up of letters and numbers: zc2gn2.
When I tried to rename it back to the original name, all the subfolders were deleted. Even after searching, nothing appears?
How is this possible? Can I recover these hidden messages, but I don’t think they are lost for good?
Thank you for your help.
hel7745

Have you properly configured Mozilla Thunderbird (you probably left the default option)

Go to the tab corresponding to messaging and modify all the settings.
Select copy email before sending.

pop.fr.oleane.com
smtp.fr.oleane.com

pop.dial.oleane.com
smtp.dial.oleane.com

In both cases it works, with Outlook right now :(

But with Thunder 1.0 something is going wrong.

yes everything is well configured though.
not understand!
I'm going to uninstall and reinstall just in case.

Hello everyone,
I would like to bring up this topic because I'm having a similar problem on a workstation.
The user has Thunderbird 1.5.0.9 (before 1.5.0.8, but I updated it just in case it was a bug that might have been resolved).
He can receive and send emails perfectly fine, but something strange is happening with a perfectly normal email from a completely normal correspondent to summarize the facts and different tests:
- Initially, the person received a regular message in the inbox, read it, then closed Thunderbird, and when he reopened it to reply, that email had disappeared.

- I searched manually in the folder and indeed, there was no trace of that message. I then used the search function and it found it... in the inbox! (even though it is still missing/invisible when you look at that folder).
- If you double-click to open it in the search results, it appears as if it's empty
- I categorized it to send it to the trash, then categorized it again to return it to the inbox, and there it reappeared, and if you open it in the inbox, you can read it perfectly, etc. But.. as soon as you switch folders or close Thunderbird, it disappears again, and so on.. You can make it reappear by categorizing in search as described, but it disappears again every time.... Does anyone have an idea what could be causing this problem?
Thank you

It is actually a problem with the inbox.msf file. This file is the index of messages in the inbox folder (message summary file). The inbox.mbox file is intact and contains the messages (hence the correct total number of messages at the bottom), but the index is corrupted.
These two files are located at documents and settings/xxxxx/application data/Thunderbird/Profiles/xxxxxxx.default/mail/local folders/

To fix it, there are two solutions:
1. The brutal method: delete it and relaunch Thunderbird. It will then rebuild the index (which can take some time if there are many messages).
2. The clean method:
- Backup the entire Profiles folder
- Run thunderbird -profilemanager in the run window
- Delete the current profile
- Create a new profile
- Launch Thunderbird
- Fill in the parameters for a new account (name, address, servers)
- Close Thunderbird
- Copy the backed-up files except for inbox.msf
- Relaunch Thunderbird and wait for the index to be created

That should work!

hello, same problem, and my solution was to:
go to the properties of the incoming mail (ctrl click on it)
click on "rebuild index"
And there you go, everything is back to normal!!
Bat
Dim

Are the configurations of Pop.oleane.fr or smtp.oleane.fr correct?

> once the messaging is open, I check them, close it, reopen it
> and the inbox is empty.

Are you sure you haven't chosen to only display unread messages? (the "view" window above the message list)

I confirm the message loss recovery solution for Thunderbird/XP-sp3:
- right-click on "inbox"
- click on "properties"
- tab "general information"
- click on "repair folder"
...wait...everything will be restored.
Provided that you haven’t deleted the Temp/Mozillamailnews folder beforehand.

Thank you.

Problem of lost emails received on Mozilla fixed by this solution
it was indeed the index that was locked!!