Nameservers
Mail Exchangers
mailin1.duplan.sk(10), mailin2.duplan.sk(100)
TXT Records
spf2.0/pra a mx include:_sid.m1.websupport.sk ?all
v=spf1 a mx include:_spf.m1.websupport.sk ?all
v=spf1 a mx include:_spf.m1.websupport.sk ?all
A Records
AAAA Records