Thunderbird (linux), spam folder, and imap

Thunderbird (linux), spam folder, and imap

Hi,

I just set up thunderbird in my laptop and when I move messages to spam folder in thunderbird they're not moved in zoho mail's web interface - they're still in my inbox.

If I right-click on the emails in my spam folder in thunderbird and ask for the messages to be moved again into spam, they're moved to spam in zoho.com, but they get duplicated there (in zoho mail).

I also tried marking them as "junk" (no idea why thunderbird can use normal nomenclature for this) those emails in zoho stay in my inbox but are marked with the (new) "junk" label.

What is the correct way to move messages to spam in thunderbird so the same happens in zoho.com?

Thanks!

Alex