Problems using ZOHO mail as IMAP client with iCloud account

Problems using ZOHO mail as IMAP client with iCloud account

Hi,

I recently subscribed my ZOHO account because I could manage my other mail accounts from within ZOHO. ( I really like the ZOHO Mail interface and want to manage all mail from one place)
I am able to connect to my iCloud account, but....

  1. Connection is very..... slow
  2. Deletion of mail is impossible, gives errors
  3. Seems like folders I remove on iCloud stay visible in ZOHO.
Thus making the IMAP connection to iCloud as not usable to me :-(

Is there a solution for this or should I cancel my subscription and start using another mail client.