I spent some time on the Thunderbird Comunity Forums searching for an answer and it appears a lot of people have had this issue without resolution. I really don't want to lose my inbox contents if I don't have too. Heres what happened. This morning, my MSN account decided to do a dump of all old email to Thunderbird, I interrupted it by pulling the network cable to stop the download, then proceeded to remove the "duplicate emails" (about 700 of them) and deleted them from deleted mail. Now, I can't receive or move any email messages into my msn inbox, getting the much feared mail box full message, I have tried deleting and compacting to no avail. I read on the Thunderbird Forum where people had gone as far as to remove their inbox and .msf files to no avail. Looking in account@lts-lucidlynx:~/.thunderbird/(profile).default/Mail$ I see these folders: drwxr-xr-x 4 account account 4096 2010-05-01 13:14 Local Folders drwxr-xr-x 2 account account 4096 2011-05-06 16:00 pop3.live-1.com drwxr-xr-x 3 account account 4096 2011-05-07 15:55 pop3.live.com drwxr-xr-x 2 account account 4096 2010-08-17 06:53 smart mailboxes <div> I don't know what pop3.live-1.com is all about but observing that it is dated yesterday. I have a webmail account in the same copy of Thunderbird that I send and receive from and it is working fine. I really need some help on this or recommendations on where to find help. Thanks, Clint </div> <div> </div> <div style="clear: both;"></div>