Be sure to ask the question in the body of the message next time.
Also, always include your version of outlook as you will get more help.
I am using outlook 2003, that option is in Tools > Options, Mail Setup tab,
Send/Receive button, and there you can change the interval of minutes between
automatic send/receives. It is recommended not to select a number below 10
minutes...it will cause problems
Hope this helps!
