Send outgoing email to my GroupWise email

Dear users,

I have Linux server whose versions are Suse 10 SP 3 and Suse 11.

I am trying to send email from these servers to my GroupWise email account.

In /etc/postfix/main.cf file, The current value of MYHOSTNAME is LINUX.LOCAL. What should be the right value of MYHOSTNAME? Is this the server I want to send email from?

Thanks for your support always.