Email Authentication

oreilly.com

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 include:_spf.google.com include:amazonses.com include:spf.mandrillapp.com include:spf.mtasv.net include:mktomail.com include:_spf.salesforce.com ip4:199.27.144.40 ip4:199.83.45.18 ip4:199.83.45.19 ip4:199.83.45.110 ip4:199.83.45.111 ip4:199.83.47.124 ip4:199.83.47.125 ip4:162.42.207.20 ip4:208.76.31.37 ip4:162.42.214.212 ip4:104.192.140.117 ip4:72.18.192.0/24 ip4:66.179.217.0/26 ip4:173.209.243.64/26 -all

DKIM

pass

Cryptographic signature on outbound mail (selector: google).

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCAUijIlIU8kdRURDP/MxUL6vlfpa4ulw0c6xmkLryLRFeANu1XS6uthkkPjVD4L+NpAQ2Azr64E8XGMFWKKUjbuLt2wDtgsODKSFEyRfGTFbqmBJuEo7l2QuOxcMJYt4/DR4vM+1mz/Z50Z/5ZqGiPE1X0qgb3kzIeTy8B3C/N4wIDAQAB

DMARC

warning

Tells receivers what to do with mail that fails SPF/DKIM. Policy: quarantine.

v=DMARC1; p=quarantine; rua=mailto:dmarc@oreilly.com; ruf=mailto:dmarc@oreilly.com; pct=20; sp=none;

Mail Servers (MX)

1 aspmx.l.google.com

5 alt2.aspmx.l.google.com

5 alt1.aspmx.l.google.com

10 aspmx3.googlemail.com

10 aspmx2.googlemail.com

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