CNAME
cname: autodiscover discover.bdw-service.de._
delete.cname
delete.IP
delete.ip: autodiscover_
http-forward
IP
MX: @ 10 mail.bdw-service.de._
MX: @ 10_
srv:_autodiscover._tcp 0 0 443 webmail.bdw-service.de._
txt: @ "v=spf1 mx a:mail.bdw-service.de ~all"_
cname: autodiscover autodiscover.outlook.com._
txt: @ "v=spf1 a:webmail.duisburgkontor.de include:spf.protection.outlook.com -all"_