Email Authentication
opwindend.net
SPF
passDeclares which servers may send mail for this domain.
v=spf1 mx a ptr ip4:213.132.197.171 ip4:213.132.197.84 a:mailfilter.webguru.nl a:server.opwindend.net a:mail.opwindend.net ~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)
10 mailfilter.webguru.nl