[exim] openwebmail

Dear Sir,

     I am valil from india, i have some problem with exim4. i have
installed exim4 with openwebmail on ubuntu. there is a some problem with
sending mails to other servers. locally its working good, 

please helps us and advice us.

how to configure for other servers (gmail,yahoo) on exim4.


Thanks & Regards

Valil Shaik