We are currently looking at using Zimbra but one of the questions we have is wether or not we can use Zimbra on the professional edition of SalesForce. The requirements for Zimbra on the appexchange say Enterprise or Unlimited edition but our Account Exec for SalesForce said sometimes certain apps can work on pro edtion and told me to ask on the Zimbra Forums.

Does the SalesForce Zimlet work with Pro editon of Salesforce?