When we switched hosting for one of our domain names (company.com), our Exchange Server failed to function especially when we change the nameservers. The new webhosting Control panel is looking for MX record and other stuff. We where instructed to point it to their mail server IPs and other routine until everything still doesnt work. How do we go over this?

There could be any number of reasons why things aren't working, but I doubt if a change of the domain would stop Exchange from working correctly. If the name servers haven't been set correctly, then the rest of the Internet doesn't know where to send your email. You need to take that up with whoever is managing the domain to ensure the correct nameservers are configured. Then you can take it up with the name server host to ensure the DNS zone is configured correctly. It sounds to me like the web hosting company want to takeover the domain completely, which is usually not required. Therefore if you have the domain with another company, switch it back, then ask the hosting company for the IP address of the web site. Put that in the domain and leave the domain name servers elsewhere. I always operate a policy of domain/nameserver with one company, web hosting with another and the ISP with a third. That way I retain control of the domain. Simon.Simon Butler, Exchange MVP. http://blog.sembee.co.uk , http://exbpa.com/

Hello Metallian, As far as MX record is concern it should not be present in Internal DNS server. It should be published on External DNS server for all Hosted Domains on New E2010 server. Simply asked your ISP to create a MX & PTR records for your domain & published on External DNS server. It will fix the issue. EXCHANGE2010, MCSE, MCTS, MCSA MESSAGING, CCNA & GNIIT

Hello guys, we made a lot of changing records from the webhost control panel DNS zone configuration and the Exchange Server still wouldn't work. The people there at the hosting were asking us what our MX record is and we don't know how to get it. Finally a Microsoft guy refer as to this page: http://technet.microsoft.com/en-us/library/cc779227%28WS.10%29.aspx Are there any possible things we need to be cautious of when doing this? Thank you.

Hello Metallian, As far as MX record is concern it should not be present in Internal DNS server. It should be published on External DNS server for all Hosted Domains on New E2010 server. Simply asked your ISP to create a MX (eg. mail.domain.com) & PTR records for your domain & published on External ISP DNS server. Once it is done, configure your firewall (NAT) it can receive mails from MX and then delivered to Exchange server. INTERNET --> MX RECORD --> FIREWALL --> EXCHANGE It will fix the issue. EXCHANGE2010, MCSE, MCTS, MCSA MESSAGING, CCNA & GNIIT