$site = New-Object Microsoft.SharePoint.SpSite("http://yoursite/") $web = $site.OpenWeb("RelativePathOf/TestSite/") $sent = [Microsoft.Sharepoint.Utilities.SpUtility]::SendEmail($web,0,0,"yourTestMail@yourdomain.com", "Test mail subject","test mail body") $sent
http://abstractspaces.wordpress.com/2010/08/13/check-sharepoint-mail-settings-using-powershell/