Email Authentication
abczdrowie.pl
SPF
passDeclares which servers may send mail for this domain.
v=spf1 include:_spf.google.com include:wp.pl ip4:193.222.135.215 include:mailgun.org include:_spf.grupawp.pl ip4:212.77.100.149 ip4:193.17.41.92 ip4:193.17.41.200 ~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 mx-waw.grupawp.pl
10 mx-gda.grupawp.pl