Sorry I'm a bit slow here, but on the POP email option, the sending user still has to have a Workfront account. When the email is received, Workfront will check the from email address to match it up to an existing users in Workfront. Otherwise it is rejected.

Just to chime in here, we are looking at making a change to make this more legible. But to explain where the color comes from, it is from the color assigned to the Condition in the Setup area. If you navigate to "Setup -> Project Preferences -> Conditions" you will see you have conditions for Projec...