Can't move emails from server to local folder (Apple Mail Mac OS Mojave)

Can't move emails from server to local folder (Apple Mail Mac OS Mojave)

HI,

I have reached the limit of email storage for Zoho and am trying to move emails to a local folder on my app (I use the default Apple Mail program). The emails are moved ok from the archive to my locally created folder in Mail. But when I look at Zoho online, the emails are still showing in the archive.

I'm set up on Mail via IMAP, all software is the latest. Can anyone help? Thank you.