Email Authentication
cas.cz
SPF
passDeclares which servers may send mail for this domain.
v=spf1 ip4:147.231.58.32 ip4:147.231.163.131 include:spf.protection.outlook.com ~all
DKIM
noneCryptographic signature on outbound mail (selector: none).
No record published.
DMARC
noneTells receivers what to do with mail that fails SPF/DKIM.
No record published.
Mail Servers (MX)
10 cas-cz.mail.protection.outlook.com