I have done the transition from Exchange 2007 to Exchange 2013.
mail.mycompany.com was my exchange 2007 + Domain Controller
I came up with mail1.mycompany.com which is my exchange 2013server
and also i came with another new domain controller mydc.mycompany.com
and i have decommisoned my exchange 2007+DC
now i dont have any server with mail.and also i have changed my current exchange 2013 servers ip to the old servers ip(Exchange2007 ip). I have my all external URL's pointing to mail.mycompany.com
What records do i need to create in DNS so that all my users do access mail.mycompany.com(internally and externally)
rather than mail1.mycompany.com
i have created an host record mail pointing to the old ip.
i have two host records mail and mail1 pointing to the same ip
do the autodiscover record should be pointed to mail or mail1.
Do i need to created any SRV records.
During the transition i created a legacy record pointing to mail do i need to delete this record.
please do guide me with DNS records needed for exchange.