I have to take our exchange server down on our small business server 2003 for maintenance (Disk Defragment) and I need to have email backup solution.
Our domain DNS is handled at Network Solutions so I called them and had them setup some webmail accounts. The problem is that when our server was setup we set remote access and mail to be mail.domain-name.com. I have an MX record that points to mail.domain-name.com which points to our server IP. The problem is that Network Solutions incoming and outgoing mail servers are called mail.domain-name.com so I need to change the record pointing to the exchange server or webmail will never work. I know I could delete our record while were down but Id like to set the Network Solutions email as Priority 20 so that if the server ever crashes we have a permanent email backup solution.
I can easily change the record at Network Solutions to something else but my question is what and where do I need to change records on the SBS 2003 so that people will still have remote access and email will go the right place when the exchange server is up.