email on ethernet

Hello all,

I am using LPC2378 for ethernet connectivity, using uip stack.
I am successfully sending data and receiving it using web pages embedded in LPC.
I want to know how to send email using LPC2378.
Do i require IP address or directly sending to respective email it will send the data.
what happens when send button is clicked in email
Does uip stack give provision for sending emails?
Please guide me
Thanks and Regards