So, my small company works with other small companies and recommends CRM systems.  We are testing out ZOHO which APPEARS to have wonderful features YET I run into some issues which cause some of us to start MISTRUSTING the system.  An example for the community's comments and ideas are:

I was told that SalesInBox and its SENT folder will NOT contain SENT items from ZOHO CRM.  I find that odd - such as whats the point of it then? 

HOW DO YOU USE SAlesInBox AND do you feel it delivers the emails with FULL confidence?