Hi, When the sent folder in my email tries to compress, I get the following error message. I'm unsure why this has started happening other than Mozilla Thunderbird emails has been doing a lot of updates in the past few months which I believe is around the time this became a problem. I have deleted my email address from the below error message. ERROR – Sent on *****@*******************.co.uk The folder 'Sent on *****@*******************.co.uk' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again. I hope someone can help me