How come when I select an email in PipelineDeals, an email client pops-up?

Code is embedded in email address fields with a Mailto: link so when it's clicked your default mail program will open automatically with in the bcc field.

Configure your profile to indicate whether you use a web-based email client like Gmail or Yahoo, or a desktop email client like Outlook or Mac Mail. Set your Default Mail Client, to optimize your experience with email links.