E-mail Function


I had a quick question. I have a few clients that are wanting to use the suite CRM as their company crm. I’ve customized several modules and i’m wanting to host them on a sub-domain. For example:


When I setup the e-mail function, will it work with their e-mail account? or will I need to create an e-mail address for each of the companies that will be using it?

I hope this isn’t too confusing.