All of sudden I got following error in Mozilla Thunderbird E-mail client.
The folder Inbox is full and can’t hold any more messages. To make room for more messages, delete any old or unwanted mail and compact the folder.
I’ve to go back in the time and recall what I did to blow up thunderbird again. It didn’t take me long to realize that I’ve received few e-mails with large attachment which has caused the problem.
As the message says the inbox is full. So I decided to compact the inbox folder. Compacting folders solves most of the Mozilla Thunderbird problems. However compacting didn’t work for me. There are over 10k messages in the inbox and it is by any means a large number. I’m also lazy and don’t do compacting regularly.
Meanwhile I got low space alert in Windows and have to clean up C drive. I freed up a lot of space on C drive and compacted the inbox again and it solved the problem.
So the solution for this problem is to compact the inbox folder.