Hi,
The Dynamics CRM Email Router should be able to do what you're referring to. Basically, the Email router will handle the sending and/or receiving of emails for the users (support@cronus.com) you setup in
CRM to use Email Router as the transport medium. The user need not be logged on for all this to work.
There are lots of material on the web about this feature, but here is one that should gives you a good understand on what it does and how to use it:
http://msdn.microsoft.com/en-us/library/hh550195.aspx
Also, the installation code is available here:
http://www.microsoft.com/en-au/download/details.aspx?id=27818
Configuring the Email Router:
http://msdn.microsoft.com/en-us/library/hh550195.aspx
You can also refer to the Dynamics CRM Installation Guide for more help:
http://www.microsoft.com/en-au/download/details.aspx?id=3621
Hope this helps.
Eric UNG [Senior Analyst Programmer :: Sydney, Australia]