Please start Thunderbird in safe mode per https://support.mozilla.org/en-US/kb/safe-mode

Is there improvement?

Hi - I tried this but it did not work. My emails for 4/23 & 4/24 are affected.

Why do I get this email system?? This is not the first time I have had problems.

Any other suggestions?

Thank you.

Jackie

petlover said

This is not the first time I have had problems.

How did you resolve the problem previously?

I didn't solve the problem I had before. I just lost all of the emails just like I have now.

Please Start *Windows'* safe mode with networking enabled - win10 http://windows.microsoft.com/en-us/windows-10/change-startup-settings-in-windows-10

Still In Windows safe mode, start thunderbird in safe mode - https://support.mozilla.org/kb/safe-mode-thunderbird

Does problem go away?

No, I did try that and it did not resolve the problem. Thank you for responding.

It sounds like your mail files are corrupted. First of all create a backup of your Thunderbird profile folder. https://support.mozilla.org/en-US/kb/profiles-tb#w_backing-up-a-profile

Then try to rebuild the index file of the troubled folder. Right-click the folder - Properties - Repair Folder

Note: depending on the corruption this may erase messages from the affected folder which cannot be recovered anymore. In that case you'd need to restore them from a recent backup done prior to the corruption.

Corruption is often caused by anti-virus software messing with Thunderbird mail files. It is therefore recommended to create an exception for the Thunderbird profile folder, so that the real-time scanner won't attempt to scan the profile with your mail.

For more information on the profile location see http://kb.mozillazine.org/Profile_folder_-_Thunderbird

Also see http://kb.mozillazine.org/Keep_it_working_-_Thunderbird