Email Authentication

smallpdf.com

SPF

pass
Declares which servers may send mail for this domain.
v=spf1 mx include:_spf.google.com include:sendgrid.net ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 include:7328340.spf05.hubspotemail.net include:spf.mandrillapp.com ip4:198.2.145.123  ~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; pct=100; rua=mailto:dmarc@smallpdf.com,mailto:re+s7fs3gmxvsi@dmarc.postmarkapp.com,mailto:dmarc_agg@vali.email; sp=quarantine; adkim=r; aspf=r;

Mail Servers (MX)

1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt4.aspmx.l.google.com
10 alt3.aspmx.l.google.com