New install Redhat 9 Email configuration problem

URGENT - Time is critical, first good bid wins A dedicated server we have just crashed and was re-installed with latest Redhat 9 and webmin console. I have got web sites/domains back up and going, but email is not coming through. I need someone to correct this problem and tell me what they did to fix so I can add domains/emails through the webmin control panel in the future correctly. You should be familiar with redhad linux/sendmail and webmin control panel to solve this problem. This is most likely a very very simple configuration issue which someone who knows what they are doing should be able to fix in 10 minutes. ## Deliverables Fix email configuration problem and document fix so we can add further email/domains through webmin console. ## Platform RedHat 9 Linux