[PHP] SMTP setting correct mail() not working?

[Ben Houlton]

I've set the SMTP setting correctly (I've checked like 50 times) but it sill comes up 
with: 
Warning: mail(): Failed to connect to mailserver at "mail.ihug.com.au" port 25, verify 
your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in 
C:\Inetpub\wwwroot\test1.php on line 6

Any ideas?
Thanks.
-Ben