I would really appreciate it someone who's integrated Gmail with Mac Mail could help me out. I followed these instructions exactly (http://mail.google.com/support/bin/answer.py?answer=13275), and I can receive mail, but I can't send. When I try to send an email, I get a message: Cannot send message using the server smtp.gmail.com. Use the pop up menu below to try a different outgoing mail server. All messages will use this server until you quit Mail or change your server settings. Can anyone help? What am I doing wrong? thanks!