1. Modify the MX records
                            Remove any existing MX records and add the following 2 new MX records:
                            
                            mx1.iedgemail.com
                            mx2.iedgemail.com
                        
Note: Set the priority of both MX records to a value of 10
2. Modify the TXT record
                            Remove the existing TXT record and add the following new TXT record:
                            
                            v=spf1 include:spf.iedgemail.com -all
                        
3. Create a new A record
Create an A record called autodiscover.example.com and point it to the IP address 199.244.76.155
Note: Please replace example.com with your actual domain name.