php mail() sending straight to spam box!

[jjk2]

<?php

$to = 'someone@gmail.com';
$from = 'me@here.com';
$message = 'blah blah blah';
$subject = 'yadda yadda yadda';
mail($to, $message, $subject, "From: $from", "-f$from");

 

I am on a dedicated linux machine. I have a named based virtual host setup on apache2. i have 2 domains running on the same ip.

 

Anyway I can edit options or something ? this email problem needs to be solved as emails of important information like email verification login etc are sent out.

 

[trq]

Are you using a valid from address belonging to the same domain the mail is being sent from?

[jjk2]

what is a valid ?

 

well i have a gmail account setup on mysite.com i think this is causing this problem /