Connecting GMail to Apple Mail
It took me a while, but I think I figured it out. I couldn't get my Apple Mail to accept a GMail account. I tried entering Username (gmail address) and password... but it wouldn't accept it.
Then I did this:
1. I went to GMail/Settings/Forwarding and POP/IMAP and set the account to Enabled IMAP. Save it.
2. Then I went to Account/Security and turned on 2-Step Verification.
3. Finally, I read up on Application Specific Passwords in Google at
http://support.google.com/mail/bin/answer.py?hl=en&answer=1173270. That showed me how to generate a ONE TIME password for using when I completed the ADD ACCOUNT function in Apple Mail--- Located in the File Menu. I put in my username (email account) and then copied and pasted in the one-time GMail password and it immediately went and found my account and put it into Apple Mail.
If I have this wrong or left something out... please let me know.