fsockopen problem with email class

[eluser]Unknown[/eluser]
I've only recently started using CodeIgniter, so apologies if this is a common problem or anything. I did try searching and found a few vaguely related topics, but none of them solved the issues I'm having.

I'm trying to send a simple email when a user fills out a contact form on my website, it all works perfectly when I'm working locally on my PC, but when I transfer the site to my web hosting I get this error when it's trying to send the email:

Code:

A PHP Error was encountered

Severity: Warning

Message: fsockopen() [function.fsockopen]: unable to connect to mail.mydomainname.com:25 (Connection timed out)

Filename: libraries/Email.php

Line Number: 1652

I assume this error is because my host disable fsockopen, so does anyone know an easy-ish fix for this?

Thanks