Hello there, I know that question has been here for many years, but only related to email. I know that to receive an email on Mac i need to set the Outlook format to Plain Text (which I did). What I don't know though is in what format I should send a Contact card from Outlook so it's safely received in Entourage. Everytime I try to send it now, I receive it as winmail.dat. :/ Thanks heaps for any help.