Registro IPv4
host: smtp-virginmedia-com.edge.unified.services
class: IN
ttl: 600
type: A
ip: 84.116.6.19

Registro CNAME (Alias)
host: smtp.virginmedia.com
class: IN
ttl: 300
type: CNAME
target: smtp-virginmedia-com.edge.unified.services

Registro CNAME (Alias)
host: smtp.virginmedia.com
class: IN
ttl: 300
type: CNAME
target: smtp-virginmedia-com.edge.unified.services