Zoho Mail not talking with Bluehost secure email server

Zoho Mail not talking with Bluehost secure email server

Hello Zoho team,

I just switched my Bluehost server from shared to VPS and added SSL to the email server.  When I try to reconnected to the new server  server.ratiochristi.net from Zoho mail I get the message 
"Invalid Security Certificate for the Server. Please change the incoming port to 110 and retry configuring."

Would you please have a look at the problem and help me? 

Thanks for the effort!
Blake