Sending Mail from SAP to External Source

Hi Experts,

We are on ECC 6.0. I have configured the standard SAP system for

sending mails from within SAP to our company mail server. The

mails from SAP are going successfully to our official company

ids, But when i am trying to send mails to outside address like

eg. " email@removed " or " email@removed ", it is not going and

giving an error recipient unknown.

The configuration of SAPConnect is correct because mails are

going successfully to our company id, to send outside do i need

to do something extra???