Email Authentication

polygon.com

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 include:_spf.google.com include:amazonses.com include:one.zoho.com ~all

none

Cryptographic signature on outbound mail (selector: none).

No record published.

pass

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

v=DMARC1; p=quarantine; adkim=r; aspf=r

10 aspmx.l.google.com

20 alt2.aspmx.l.google.com

20 alt1.aspmx.l.google.com

30 aspmx2.googlemail.com

30 aspmx3.googlemail.com