Failed to connect SMTP server for smtp_to function

Hi ,I want to use smtp_to function in one of my jobs.

I am testing the function with test script.

I gave the settings in the Sever manager for

smtp server name mail.google.com

Sender :abc@gmail.com

I have prepared small script with smtp_to function with required variables as shown below

smtp_to('xyz@gmail.com', 'test', 'test mail', 10, 10);

I executed the job but it is throwing error like Failed to connect to SMTP server:<mail.google.com>

Please find the below log file for error log reference.

20624     14560     EML-160200     7/21/2013 1:14:17 PM     |Session Job_smtp

20624     14560     EML-160200     7/21/2013 1:14:17 PM     Failed to connect to SMTP server: <mail.google.com>.

Please help me how to resolve this issue.Is there any additional settings required.I am not aware of smtp settings .

Thanks & Regards,

Ramana.