Thread:Project:Support desk/Email Activation not working

I'm relatively new to mediawiki. I've installed it on a windows7 machine using bitnami. when I set it up the wizard was pretty basic and didn't really ask for much configuration other than the ports. I'm now trying to setup the email features to allow users to reset their password however can't find any way of doing it.

When I try to confirm an email address for a user I get the following error

Coaching Wiki could not send your confirmation mail. Please check your email address for invalid characters. Mailer returned: Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set

can anyone help me?