SOA
Start of Authority
Primary NS
Mailbox
hostmaster.1und1.com
Serial
2017060192
Refresh
28800
Retry
7200
Expire
604800
Minimum TTL
600
MX
Mail Exchangers
TXT
TXT Records
krystal-domain-verification
v=spf1 include:mailgun.org +ip4:162.241.248.11 include:3918531.spf06.hubspotemail.net include:sendgrid.net include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
A