Hello community! Hope You're all going well. I have one case I can't resolve. My domain newvoice.pl has address poczta.newvoice.pl. I wanted my agents to log to their web mail via easy address so I added CNAME record: poczta.newvoice.pl CNAME business.zoho.com. Everything was going ok, but one day, when I go to poczta.newvoice.pl I saw login page, then I put there my credentials and Error 500 appeared. I didn't know what was going on and found out, that the address was changed to https://mail.zoho.eu/?login=true.  I changed it only to https://mail.zoho.eu and I was managed to log in. Can You help me to get it sorted?