Email Authentication

ntppool.org

SPF

pass
Declares which servers may send mail for this domain.
v=spf1 ip4:34.209.80.29 include:_spf.google.com  include:stspg-customer.com ~all

DKIM

none
Cryptographic signature on outbound mail (selector: none).
No record published.

DMARC

pass
Tells receivers what to do with mail that fails SPF/DKIM. Policy: quarantine.
v=DMARC1; p=quarantine; adkim=s; aspf=s; pct=100; fo=1; ri=28800; rua=mailto:4649a710@in.mailhardener.com; ruf=mailto:4649a710@in.mailhardener.com

Mail Servers (MX)

1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 aspmx3.googlemail.com
10 aspmx2.googlemail.com