Hi all.
I am please needing confirmation of my suspicions:

I have set up localhost, and have managed to send email using:

PHP Code:
ini_set("SMTP","mail.mysite.co.uk"); 
ini_set("sendmail_from","newsletter@mysite.co.uk"); 
Now everything works fine, but I cannot use this to send mail to external accounts/mail addresses, yet can to my personal "mysite.co.uk" account (on the same server)

I suspect this is how it should work (ie I have it working properly) I just need confirmation.

Cheers