Notify when there exists unread email
Why bother adding email integration if you aren't going to let the sales guy know he received a reply?
This should be front and center.
Great suggestion – I’d actually recommend sorting your Contacts list by Actionable Item. This will float Contacts with unread emails to the top of the list whenever they come in. Quick screenshot here – http://take.ms/Fxn3Z
Let us know if that helps!