My Avast! Antivirus program requested that I turn off the Zimbra Desktop SSL/TCL secure connection with Yahoo! and Gmail so that the Avast! email monitoring function can monitor emails through Zimbra Desktop. Avast! says that the Avast! program will provide SSL/TCL secure connection, but can not do its job if Zimbra Desktop provides SSL/TCL secure connection.

How can I turn off SSL/TCL secure connection in Zimbra Desktop?