I have been using Outlook for Mac 2011 for last 2 years. Now I want to list out all the people in my email correspondences (sent and inbox) and send them one email. Where can I find the database of everyone's email address in my Mac? The mail will have to have email addresses one after another like this: Expressmaster@express.amosconnect.com, Yu@marine.com all in the format which is accepted in outlook and which can be emailed immediately. I need to basically tag all my email address to send them one email.