Email Authentication
open-std.org
SPF
passDeclares which servers may send mail for this domain.
v=spf1 mx a:open-std.org a:www7.open-std.org a:keld1.klid.dk ~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)
5 www5.open-std.org