Don't think so alot of registarar's send out an email when you make changes to the domain name did you get an email to the email on the account. The day you got the email is the day it changed

start -> control panel -> dns -> forward lookup zones -> the zone of your domain right click the white space add host (A) record it will append it to the begining of the domain name but if you are on...

I believe to authenticate for spam by using a dual look-up, IP to name and name to IP. I know aol will reject if it's not setup by your isp

I would suggest you setup dns for the mail to work. You can setup the dns name in iis or leave it alone if you are using 1 url. For the mail once the mail packet gets to the firewall you will need...

So is this correct 10 mail.normax.pt 92.243.5.252 86400
Is there any email addresses setup here?

I can telnet to it mail should be working.

220 s08L ESMTP

Sounds like a worm that messed up your dns and they are hard to clean try malware bytes ccleaner and I think there are tools out there to straighten out a computers dns but I forget which one I used...

Sounds like a dns problem did you try www.checkdns.net and see what email servers the domain is pointing to. did you try to telnet to the mail server?

Wow sorry your very lost. Are you trying to setup active directory or a server to host a website the 2 are totally different. you don't need to install active directory to run a website. if you are...

Do they have more then 1 mx server. Which email from are they getting the user is not found. Can you post the domain so i can run a dns check

Just become a reseller and sell other isp services.

Who is using the exchange server you or them?

Make sure an a record or cname is setup in your dns for www.

The website a record needs to point to a public IP. if 1.1.1.1 is internal you will not be able to view that website outside the building