How to automatically archive to Thunderbird Local Folder?

Question

I have set up a new account with IMAP protocol, and configured archiving this way:

Account settings -> [email protected]
                 -> Copies & Folders
                 -> Messages Archives
                 [x] Keep messages archives in
                     [x] "Archives" folder on: -> Local Folders

(I have also tried

                 [x] Keep messages archives in
                     [x] Other: -> "Archives" on Local Folders

instead.)

But it does not work. When I..

• pick an e-mail in [email protected]/Inbox folder
• right click -> archive

I expect that:

• the e-mail is moved to Local Folders/Archives/2020/2020-01
• the e-mail is no longer in [email protected]/Inbox

But instead:

• new (unwanted) folders [email protected]/Archives/2020/2020-01 are created (both locally and distantly)
• the e-mail is moved to these new folders instead (both locally and distantly)
• the e-mail is not even locally copied in Local Folders/Archives

The problem persists after I compact folders and restart Thunderbird.

What could be wrong?
How to fix this behaviour?
Is the problem rather related to Thunderbird or to new.server IMAP configuration?
How to investigate?

Answer 1

Okay, got it. Just make sure that you also do the same parametrization for every identity associated to your [email protected]:

Account settings -> [email protected]
                 -> Manage Identities...
                 -> <pick one, and repeat for each>
                     -> Edit...
                     -> Copies & Folders
                     -> Messages archives
                     [x] Keep messages archives in
                         [x] "Archives" folder on: -> Local Folders