Is there a way to do away with the comment section in listings?

In listings > comments > settings you can disable comments.

Thanks I have everything working except it will not send emails to any address that is on the same server as osclass is running on. I have three sites running on dreamhost server and it will not send emails to any address on these sites. Any idea why that would be?

Settings > Mail server

The way I have mail server set now is only way it will send any emails.