Can't see pop3 added account in thinderbird

Can't see pop3 added account in thinderbird

In my zoho account, i have added a (mail@**my_domain**.com) account using pop3 (deleted mails from pop server) and this emails is showing in separate account (bottom left corner Mail accounts).

Issue i am facing:
  1. I am using thunderbird, so in thunderbird i am not be able to see any email mail@**my_domain**.com.
  2. i am not ba able to move emails from mail@mydomain**.com to main zoho inbox.
  3. can't redownload emails to my mail@**my_domain**.com using pop or imap.
What is the solution for that?