I currently have a new SBS 2003 Server installed on our network. We are using Covad Hosting services for email and then the SBS 2003 server downloads. (Temporary until all users have been migrated.) However, now I am starting to have an increase in our domain being blocked by other email providers and I think its due to our SBS 2003 server DNS information. Should I update our SBS 2003 Server with Covad’s DNS information? If so, would I add it to reverse or forward lookup zones? Nothing else has changed except the new addition and there are no rogue emails.
