recently found my workplace Mozilla Thunderbird client acting messed up. every time a message comes in, i get a message saying my Inbox summary file has been corrupted and needs to be deleted. yet even when i did that the problem still persists.
after scouring the web for answers, it seems that Thunderbird mailboxes get crappy the bigger it gets, especially when it hits 2GB. my Inbox was 2.07GB :O it seems that Thunderbird doesn’t compact your boxes for you automatically, so even if you delete files from a folder, the message is really still there.
so the moral of the story is to compact your folders regularly. there are probably some extensions you can download that’d do that for you automatically so you don’t forget. while trying to recover my Inbox, i’ve had to rebuild files, renamed folders and whatnot to get my emails back, so don’t repeat my mistake of letting it grow too big.
myuu’s inbox after compacting: 571MB.