Email Authentication
a16z.com
SPF
passDeclares which servers may send mail for this domain.
v=spf1 include:_spf.google.com include:_spf.salesforce.com include:spf.happyfox.com include:mktomail.com include:sendgrid.net ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:199.15.214.45/32 ip4:199.15.214.46/32 ip4:199.15.214.47/32 ip4:199.15.214.48/32 ip4:199.15.214.49/32 ip4:199.15.214.50/32 ip4:199.15.214.199/32 ip4:199.15.214.201/32 ip4:199.15.214.202/32 ip4:199.15.215.77/32 ip4:199.15.215.78/32 ip4:199.15.215.79/32 ip4:199.15.215.80/32 ip4:199.15.215.81/32 ip4:199.15.215.82/32 ip4:192.254.121.248/32 ip4:148.105.12.0/24 ip4:167.89.98.146/32 ip4:167.89.89.46/32 ip4:54.149.36.89/32 ip4:44.236.219.44/32 -all
DKIM
noneCryptographic signature on outbound mail (selector: none).
No record published.
DMARC
passTells receivers what to do with mail that fails SPF/DKIM. Policy: quarantine.
v=DMARC1; p=quarantine; pct=100; sp=reject; rua=mailto:21zezn4c@ag.dmarcian.com; ruf=mailto:21zezn4c@fr.dmarcian.com
Mail Servers (MX)
10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
30 alt2.aspmx.l.google.com
40 aspmx2.googlemail.com
50 aspmx3.googlemail.com