Pick up mailserver in a template?

I am sending mail from a template (posting parameters from a html form) and everything works perfectly.

Now I want to retreive configured mailserver from the server settings.

What is the preferred way to do this.

....

String mailserver = ?;

org.jahia.services.mail.MailService ms = org.jahia.services.mail.MailService.getInstance();
ms.sendMessage(from,to,null,null,subject,mailserver,message );

....

Regards

/Lars Hagrot

...