I am new to Zimbra and became interested in the product once Vmware acquired the company from Yahoo. I am having some difficulty... My goal is to consolidate 3 email accounts into Zimbra for easy sync and reply. Currently, 2 of these accounts are @optonline.net (Cablevision email service based on Long Island, NY). I am receiving error messages with the POP provided, but noticed it does NOT say POP3. Are these different? Does Zimbra support Cablevision? Does anyone know how to check.