"Junk" or "Spam"?

Thanks for replying. Junk (it moves things to Spam too, but that is generally actual spam)

Um, OK. "Spam" is the result of someone else's sorting, usually your own AV or some operated by your mail provider. Thunderbird doesn't use the word "spam".

Otherwise, I'm puzzled. If it is truly disabled on all of your accounts then it should of course be doing nothing.

No filters at work that you've forgotten about? You have the relevant address books nominated as junk whitelists?

You could go to Tools|Options|Security|Junk and reset the training data, but this really shouldn't make a difference if the Junk controls are in fact disabled on all of your accounts.

Yeah it's really weird. I have tried resetting training data and all elese I could think of.

Thanks for trying to help!

are your colleagues in your address book. If they are and thir messages go to trash/junk then you need to look elsewhere. Thunderbird does not make addresses in the address book as Junk. It could be your mail provider, it could be your anti virus. But not Thunderbird.