How do I save all my contacts from my e-mail list to the contact list of Outlook with a few clicks?

OS: Mac

Version: Microsoft Office 2011 Mac

Program: Outlook

For a crowd funding campaign I would like to export my contacts from my e-mail account and use those contacts in the newsletter e-mail list from my crowd funding campaign. In older versions, Outlook would automatically save contacts from e-mails to the contact list. Unfortunately this is not the case with the 2011 version of Microsoft Office for Mac.

So is there an option to save all the contacts (also from previous e-mails) to the contact list without having to do it manually one by one?

When the contacts are in my contact list, it's quite easy to export them, however they need to be in the contact list.

Thanks in advance!