Is there anyone on the forum who knows where I need to go to understand how to set up a Fedora Core 5 / Sendmail email server for my company?

The server can only be accessed remotely, either puTTy or through the Webmin control panel.

I have registered an MX with our ISP for mindsheet.biz, the FC5 server has a hostname of marigold.melbourne.co.uk.

I have followed several HowTo's which have helped me install sendmail, Squirrelmail, Spamassisin and Dovecot but I can not get the server to receive mails if I send to account_name@mindsheet.biz.

Totla novice with this email server game so would really appreciate some good pointers on where to look fo rthe answer?