postfix problems

[spx3]

Hi,
I am repeatedly trying to send emails with sendmail to my address on gmail
and altough I have installed postfix and mailq-s output is empty the email
still doesn't get to gmail.
What should I do ?
What does this mean?
Also how can I erase all messages in the mailq ?

[fozy]

Have you tried following this guide?

http://behindmyscreen.newsvine.com/_news/2006/12/31/501615-configuringubuntu-postfix-and-gmail-in-101-easy-steps