Email Authentication
lublin.pl
SPF
passDeclares which servers may send mail for this domain.
v=spf1 mx ip4:212.182.63.154 ip4:212.182.127.162 ip4:212.182.63.142 -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)
1 cyborg.cpu.lublin.pl