Why is the number of records calculated at the SalesDesktop Filters dialog differs from the number of records downloaded into the Outlook folders from the Salesforce?
The reason for this is that SalesDesktop synchronizes items passed through the SalesDesktop filters and their relations. For example, if a Salesforce Contact has passed through the filters, SalesDesktop downloads the Account, which it belongs to, into the Outlook during the same synchronization session. And, it does not matter if this Salesforce Account has passed through the filters itself or not. You can find the same relationship between an Account and its parent Account, an Opportunity and the Account it belongs to, a Case and the Contact it relates to, and so on.