I have a question about a fail over solution of the Email server we host.
We have a Microsoft Exchange server. We have two different T1 line for the email server. One T1's IP is 22.214.171.124 while another one is 126.96.36.199.
Now we only use one T1 line and the public IP is 188.8.131.52. When people send an email to our company, the email goes to 184.108.40.206.
We will use another T1 when the first T1 has problem. Assume the first T1 is down, the email people send will go to 220.127.116.11 instead of 18.104.22.168.
Does anyone know how to do this? Or any companies like godaddy provide similar service? Thanks.