Hello to all. Since I'm new to this forum I thought I would share the dns configuration for Win 2003.
This guide has the following variables(not all REAL):
a) The domain name is: xtrimdesign.ro (http://www.xtrimdesign.ro)
b) The email server for the domain is: mail.xtrimdesign.ro
c) the windows server uses STATIC IP ADDRESS: 93.115.203.215

BEGIN:
1. Install DNS service:
- Control Panel>Add/remove Windows Components>Networking Services>Domain Name System (DNS) (check it and click OK and NEXT to install)

2. Go to Administrative Tools and click DNS
a) go to your PCname> Forward Lookup Zones>right click and select NEW ZONE
b) PRIMARY ZONE>NEXT>zone name(eg:type xtrimdesign.ro)>NEXT>check Create a new file with this file name (eg: xtrimdesign.ro.dns)>NEXT>check Do not allow dynamic updates>NEXT>FINISH

- now we will make the reverse ip lookup using our static ip addres

c) go to your PCname> Reverse Lookup Zones>right click and select NEW ZONE
d) PRIMARY ZONE>NEXT>enter your ip address class c (eg: 93.115.203)>NEXT>check Create a new file with this file name>NEXT>Check Don't allow dynamic updates>NEXT>FINISH

- Now we are ready for in-depth settings

3. Configuring settings for your zone name:a) go to your PCname> Forward Lookup Zones
b) now you will have HOST(A) like: yourdomain.com(or same as parent folder) pointing to the static ip address of the server(eg: 93.115.203.215)

- if not { right click on blank> NEW HOST (A)> leave name blank to use same as parent folder> Enter the IP>Check PTR> ADD HOST}

- now we will create the mail.yourdomain.com(eg mail.xtrimdesign.ro poiting to the same static IP)

c)right click on blank> NEW HOST (A)> at name enter: mail (you will see that the FQDN changes automatic to mail.yourdomain.com[in this case mail.xtrimdesign.ro])> ENTER THE IP ADDRESS> CHECK PTR> ADD HOST

ok.so far so good
now let's add the most important thing: the MX record (so that the email@domain is resolved corectly)

d) right click on blank> NEW Mail Exchanger (MX)>leave blank at Host or child domain>BROWSE>go to your PCNAME>Forward Lookup Zones>your zone(eg: xtrimdesign.ro)>select the mail Host(A)>OK>OK

FINISH

As we have made the correct DNS settings now we can install HMS and SpamAssasin and Clamwin (in the next tutorial)
PS: to test dns use command prompt and write: nslookup yourdomain.com; nslookup mail.yourdomain.com
Thank you for reading