Solarwinds stopped sending alerts--where to change smtp settings

Are the alerts still showing up in the web interface?  If you rebuilt your mail server, check the email trigger action for the name of the mail server you've configured.  If your new mail server has a different hostname, you can create a entry on your DNS server to match the old one or use the windows hosts file to create one.

I think that would be the quickest way to fix the mail issue.

If the alerts are not showing up in the web interface, check to make sure the Alerting service is still running.

yes the alerts are still showing up. It's a different email server now (name and ip). I would like to explicitly point solarwinds to it in the settings.

From the Orion server (not the Web page), go to System Manager. then Alerts menu.  Under Configure Basic and Configure Advanced you'll see all your alerts.  For each alert you use, open it up and look at the Actions.  The email action will specify the SMTP server.

thanks .Worked!!!