Client has DNS at a telephone company which provide emails for his domain (sudamerica.cl). I need to switch DNS in order to get control over them so I can properly set the A records for the new website, and the intranet.sudamerica.cl for the Intranet website.
I have suceeded before by coping the MX record by doing nslookup with http://network-tools.com/nslook/, the pop records and so on... but many other times it has failed without explanaition.
Is there any other records beside MX records that must be migrated? What I can do to ensure DNS is correclty configured for email delivery?