Email Authentication
drei.at
SPF
passDeclares which servers may send mail for this domain.
v=spf1 include:rechnung1.drei.at include:_spf_ipv4.drei.at a:mailout.faxonline.at ip4:213.94.110.102/31 -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.