I found the following information on this page
Address (Account Name): full email address
Port: 587 or 465
It also instructs to enable POP in Gmail first, however I'm not certain whether this is necessary for our Scheduling Server email feature. It would be great if you can report back what configuration and steps worked for you.
the Telerik team
Check out the Test Studio roadmap
to find out more about the new performance testing functionality coming in our R2 2011 release this September!
Have you looked at the new Online User Guide
for Telerik Test Studio?