Thanks for your help so far.
Where can I find the name of the “actual mailbox”? what if it is not a single mailbox as I have indicated in the previous?
These are the names that Mail presents
As you can see all different as some refer to the account names, others appear in the message header display and the there are the folders in the library that are named differently.
Then there is the rule that refers to “All Rubbish”. Picture in next reply as I am only allowed to post 6 pictures it says
In ‘Change Settings’ I tried “Deleted Messages” as that is the default. On train as spam this puts the message in the bin of the iCloud account, no matter what account it came from. On train as good it moves it back to the correct account inbox (this is progress as before nothing was moved at all!, the tinkering has apparently done something)
I also tried “Bin” but this creates a local folder named Bin and puts the message in there. Eventhough it was instructed not to use a local folder.
So when you say “put the name of the actual mailbox” please tell me which name is that? And what if different accounts name their mailboxes differently?